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Study Guide For The Professional Engineer License Examination In Naval Architecture and Marine Engineering With Sample Examination and Solution Prepared by: The Society of Naval Architects and Marine Engineers December 2009 Subject to Annual Update and Revision

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  • Study Guide

    For The

    Professional Engineer License Examination

    In

    Naval Architecture and Marine Engineering

    With

    Sample Examination and Solution

    Prepared by: The Society of Naval Architects and Marine Engineers

    December 2009

    Subject to Annual Update and Revision

  • Table of Contents

    Introduction Licensing Requirements Eligibility Application Procedures and Deadlines Description of Examination Examination Schedule Examination Content Examination Development Examination Validity Examination Content Outlines

    Examination Preparation and Review Minimum Competency Scoring Procedures

    Examination Procedures and Instructions Examination Booklets Answer Sheets Starting and Completing the Examination

    References Special Accommodations Examination Specifications Sample Examination Questions Sample Examination Question Solutions Study References for Naval Architecture and Marine Engineering Appendix A: Sample Examination Cover Sheet Appendix B: Sample Examination Answer Sheet Appendix C: Frequently Asked Questions (FAQ)

  • INTRODUCTION

    In 1995 The National Council of Examiners for Engineering and Surveying (NCEES) approved the offering of a national examination for professional licensure of naval architects and marine engineers (NAME) with The Society of Naval Architects and Marine Engineers as the sponsoring organization. A survey of the Societys membership was conducted to determine the range of subject matter of importance to practice in this field and an examination specification was developed and published. In the October, 1998 and April, 1999 issues of Marine Technology and SNAME NEWS, articles were presented by the then President, Jose Femenia, discussing various aspects of the examination for Professional Engineer Licensure in Ship Design Engineering (SDE),. The first Principles and Practice Examination was given on October 29, 1999. In 2001, the name was changed and thenceforth is identified as Naval Architecture-Marine Engineering (NAME). In an effort to assist the Societys membership in their exam preparation, some study materials were developed and presented on the SNAME Web Site that are concerned with some subject areas of the examination specification (the examination specification was published in the Marine Technology issue Volume 35, Number 4, of October, 1998). Since 2001, an annual examination has been administered in April of each year by the various licensing jurisdictions authorized to offer a Principles and Practices examination in this field of licensure. During 2005 and 2006, a second survey of the naval architecture and marine engineering field was conducted to assess needed changes in requirements for abilities, knowledge and practices. Based on this survey, a revised examination specification was developed and implemented in April of 2008.

    Obtaining a Professional Engineer license in Naval Architecture and Marine Engineering is one of the biggest steps to be taken in establishing your position in the field. The Society of Naval Architects and Marine Engineers, in cooperation with the National Council of Examiners for Engineering and Surveying (NCEES), is pleased to be of help as you prepare yourself for the examination. This Study Guide will provide you with important information on what, how, and when to do it and who to contact for additionally needed information.

    The Society encourages its non-licensed membership to consider sitting for the PE exam in Naval Architecture-Marine Engineering next April. Application deadlines vary by jurisdiction and in some jurisdictions are as early as six months prior to the exam. Members must contact their licensing boards to determine whether or not their jurisdiction will be offering the exam, and for the examinee qualifications, application deadlines, and application fees. Contact information for the licensing boards, as well as other information pertaining to professional licensure, can be found on the website for the National Council of Examiners for Engineering and Surveying at http://www.ncees.org. It is understood that approximately 42 states and other jurisdictions offer the NAME examination to qualified applicants. In the event that a member's jurisdiction does not offer the NAME examination, it is worthy of note that, since the examination is national in scope, the state or other jurisdiction may offer registration by comity if the examinee passes the examination administered by another jurisdiction. This information should be available from the local licensing board.

    Beginning in 2002, a Professional Engineer Review Course (PERC) has been presented each year to assist those preparing to take the NAME examination. Those interested in registering for a PERC offering should go online at www.snamelearning.org, or contact SNAME headquarters.

    The examination specification has four main categories, Engineering Fundamentals, 25%, Naval Architecture, 30%, Marine Engineering, 26% and Common, 19%. Each of these categories is further subdivided into topic areas, each of which is weighted within the above noted amounts. The study materials that are presented in the PERC typically cover more than one subject area at a time; some presentations are of a more general nature while problems concerned with a specific subject area will also be included from time to time. Problem solutions and reference suggestions are also given, but not necessarily with the initial presentation of subject area materials. The PERC ends with a set of sample problems and solutions in the format of the NAME exam. (For those wishing to use the SNAME Web Page materials as a study guide, it should be noted that these materials have not been updated recently, although it is intended that further development will be done when the new SNAME web software is installed, as primary work has been directed toward continuing development

  • of the PERC). Marine electrical engineers should note that the NAME exam has only about a 5 percent focus on electrical equipment, load analysis, distribution, energy conversion and emergency systems. Therefore, marine electrical engineers might find licensure in electrical engineering more appropriate for their needs. They should refer to the NCEES web site at http://www.ncees.org for further guidance. NAME examination questions have been authored by a wide variety of the Societys currently licensed and widely scattered membership so that it may not be possible to respond rapidly or to all questions. Submitted questions and responses will be added to the Web Page materials when they become available, but without attribution.

    It is important to note that the examination preparation is ongoing and will continue to be so. P.E. members are requested to submit to SNAME Headquarters their latest ideas and suggestions regarding subject matter and specific questions that may be suitable for use in future examinations. Any efforts will be greatly appreciated.

    To start with exam preparation, the prospective examinee should collect an appropriate selection of the professional references summarized below:

    Introduction to Naval Architecture, E. Tupper, 1996, INA/SNAME Principles of Naval Architecture, E.V. Lewis, 1988, SNAME Ship Design and Construction, R. Taggart, 1980, SNAME Ship Design and Construction, T. Lamb, 2003, SNAME Ship Production, R.L. Storch, C.P. Hammon, H.M. Bunch & R.C. Moore, 1995, SNAME Fiberglass Boat Design and Construction, R.J. Scott, 1996, SNAME Marine Engineering, R.L. Harrington, 1992, SNAME Elements of Ocean Engineering, R.E. Randall, 1997, SNAME Rules for Building and Classing Steel Vessels, American Bureau of Shipping, (ABS) Rules for Building and Classing Plastic Vessels, 1978, ABS Rules for Building and Classing High Speed Planing Craft, 1997, ABS U.S. Code of Federal Regulations, Titles 33 and 46 (CFR 33 and CFR 46)

    Additional reference recommendations are provided in the PERC Units and new or updated texts are in development by the Society and information concerning the availability of these materials may be obtained by contacting SNAME Headquarters at (201) 499-5056.

    For those wishing to have specific questions answered concerning the examination subject areas and study materials, an e-mail to [email protected] or FAX message to (201) 798-4975 at SNAME Headquarters will be responded to as soon as and to the extent possible. It should be noted that examination questions have been and are generally authored by a wide variety of the Societys currently licensed and widely scattered membership so that it may not be possible to respond rapidly or to all questions. Further, the examinations are copywrited by NCEES and are not available for public review or discussion.

    Eligibility The primary purpose of licensure is to protect the public health, safety and welfare. 55 United States jurisdictions (all 50 states as well as The District of Columbia, Puerto Rico, The U.S. Virgin Islands, Guam, and The Northern Marianas Islands) have enacted professional engineer licensing statutes that are administered by appointed licensing boards. The passing of license examinations provides one means of measuring the professional competence of candidates, however the various licensing jurisdictions generally require a minimum 12 years of experience in order to become qualified to take the Principles and Practice examination. Eight (8) years of experience is usually credited to those applicants who have graduated from an ABET (Accreditation Board for Engineering and Technology) accredited engineering program, and additional

  • experience is credited for completion of advanced engineering degree requirements at an accredited institution. Some states now require graduation from an accredited engineering program. In some states, possessing an earned doctoral degree in an engineering discipline satisfies the education and experience requirement. Most jurisdictions also require that candidates pass an examination on the Fundamentals of Engineering (FE) in order to be qualified to sit for the P.E. license. While some states do not require passing the FE examination in order to become qualified to take the Principles and Practice examination, it should be kept in mind that if in your career you move your practice from one jurisdiction to another, licensing by comity may not be possible if you have not passed the FE Exam. Licensing qualification requirements vary from state to state (jurisdiction to jurisdiction) and several states do not offer examinations in all engineering fields, so a candidate needs to contact the appropriate licensing board to obtain specific information on requirements and application forms. To obtain addresses and Fax numbers of the licensing boards, see the survey results given below, or visit the NCEES home page at www.ncees.org, or call (800) 250-3196. In the information below, there are summary notes presented on the various jurisdictions, indicating whether NAME licensure is offered and dates for making application to the licensing boards to become qualified and authorized to take the examination. Most states use examination administration agencies to proctor the examination. Professional Credential Services, Inc. in Tennessee

    (page updated 12/31/08 - wmm)

  • Licensing Requirements Application Procedures and Deadlines Licensing requirements and associated fees vary from jurisdiction to jurisdiction and applicants are responsible for making contact with their appropriate board. Application forms for taking the Principles and Practices examination in Naval Architecture and Marine Engineering and instructional information are available from the individual licensing boards. The results of a License Board Survey taken in 2006 are given below:

    SURVEY OF STATE LICENSING BOARDS As of 12-31-08

    State: Licensing Board contact information

    Offering NA/ME Exam

    Anticipated Application Deadline

    Comment:

    NOTE: The following survey is offered as guidance only. It is not exhaustive and should not be relied upon as an official document. Contact your own state licensing board for specific information on the April NA/ME PE exam offering, or go to http://www.ncees.org. Alabama 334.242.5568, or 866.461.7640 (toll free) 334.242.5105 fax Regina A. Dinger, Executive Director [email protected] http://www.bels.alabama.gov

    Yes Jan. 15 **

    Alaska 907.465.1676 907.465.2974 fax E-mail: [email protected] Ginger L. Morton, Executive Administrator [email protected] http://www.commerce.state.ak.us/occ/pael.cfm

    No *Licenses only six disciplines, Chemical, Civil, Electrical and Computer, Mechanical, Mining and Mineral, Petroleum. Will proctor the exam for any other jurisdiction, but does not offer comity.

    Arizona 602.364.4930 602.364.4931 fax E-mail: [email protected] Ronald W. Dalrymple, Executive Director [email protected] http://www.btr.state.az.us

    No NAMEs listed in

    state register

    Licenses by discipline only. Application must be submitted 315 days before exam date and if approved, register with ELSES by February 1.

    Arkansas 501.682.2824 501.682.2827 fax Stephen W. Haralson,PE., Executive Director [email protected] http://www.arkansas.gov/pels

    Yes Feb 15 (Complete application)

    **Offers Comity

    California 916.263.2230 916.263.2221 fax E-mail: [email protected] Cindi Christenson, P.E., Executive Director [email protected] http://www.dca.ca.gov/pels/contacts.htm

    No *CA licensing is discipline specific whereby any examination must have the appropriate discipline defined by the legislature. At this time, Naval Architecture is not in the statute.

  • Colorado 303.894.7788 303.894.7790 fax Angeline Kinnaird, Program Director [email protected] http://www.dora.state.co.us/engineers_surveyors

    Yes Jan. 1 ** Applicants for licensure must be lawfully in the United States. Colorado Board approves BS+30 change in Model Law.

    Connecticut 860.713.6145 860.713.7230 fax Barbara Syp-Maziarz, Board Administrator [email protected] http://www.state.ct.us/dcp

    Yes Dec. 1 **

    Delaware 302.368.6708 302.368.6710 fax Margaret Abshagen, Executive Director [email protected] http://www.dape.org

    Yes Nov. 1 **

    District of Columbia 202.442.4320 202.442.4528 fax Theresa Ennis, Board Representative [email protected] http://www.asisvcs.com/indhome_fs.asp?CPCAT=ENO9STATEREG

    No Per 2001 survey

    Florida Phone:850.521.0500 Fax:850.521.0521 [email protected] Paul Martin, Executive Director http://www.fbpe.org

    Yes * Nov. 7, 2008

    **See www.fbpe.org under applications for deadline Go to ELSEXAM.ORG for exam registration

    Georgia Phone:478.207.1450 Fax:478.207.1456 [email protected] Julianne Busbee Darren Mickler, Executive Director [email protected] http://www.sos.state.ga.us/plb/pels/

    Yes Dec. 15 **Deadline may change for 2009

    Guam 671.646.3115/3138 671.649.9533 fax Ms. Amor A. Pakingan, Board Administrator [email protected] http://www.guam-peals.org

    No *The NAME Group II exam is not currently offered on Guam. It is not within the regulatory authority of the Board

    Hawaii Phone:808.586.2702 Fax:808.586.2874 James Kobashigawa, Executive Officer [email protected] www.hawaii.gov/dcca/pvl

    No *Hawaii licenses by discipline but NAME is not one of the disciplines they license.

    Idaho 208.334.3860 208.334.2008 fax David L. Curtis, P.E., Executive Director [email protected] http://www.state.id.us/ipels/index.htm

    Yes Jan. 10 **

  • SURVEY OF STATE LICENSING BOARDS

    As of 12-31-08 State: Lic. Board tele. Number

    Offering NA/ME April 2009

    Anticipated Application Deadline

    Comment:

    Illinois 217.785.0877 217.782.7645 fax Mr. Terry Baird, Design Professions Coordinator [email protected] http://www.dpr.state.il.us

    Yes Nov. 15 **

    Indiana 317.232.2980 317.232.2312 fax Gloria Keating, Examination Manager [email protected] Gerald H. Quigley, Executive Director http://www.in.gov/pla/bandc/engineers

    Yes Jan. 2 **

    Iowa 515.281.4126 515.281.7411 fax Gleean M. Coates, Executive Officer [email protected] http://www.state.ia.us/government/com

    Yes Feb. 1 **

    Kansas 785.296.3053 Jean Boline, Exam Specialist [email protected] Betty L. Rose, Executive Director http://www.accesskansas.org/ksbtp

    Yes Jan. 15 **

    Kentucky 800.573.2680 502.573.2680 502.573.6687 fax B. David Cox, Executive Director [email protected] http://kyboels.state.ky.us

    Yes Jan. 1 **

    Louisiana 225.925.6291 225.925.6292 fax Donna Sentell, Executive Secretary [email protected] http://www.lapels.com

    Yes Dec. 1 **

    Maine 207.287.3236 207.626.2309 fax [email protected] Warren T. Foster, Executive Director http://www.professionals.maineusa.com/engineers

    Yes 6 mo. prior **

  • SURVEY OF STATE LICENSING BOARDS

    As of 12-31-08 State: Lic. Board tele. Number

    OfferingNA/ME April 20094

    Anticipated Application Deadline

    Comment:

    Maryland 410.230.6322 410.333.0021 fax [email protected] Pamela Edwards [email protected] Sally Wingo, Executive Director [email protected] http://www.dllr.state.md.us

    Yes 120 days before the exam for 1st time applicants and 60 days for re-exam applicants.

    **

    Massachusetts 617.727.9957 617.727.1627 fax Deborah Milliken, Administrative Assistant [email protected] http://www.state.ma.us/reg

    No **The Massachusetts Board uses the services of Professional Credential Services, Inc. (PCS) to offer the Naval Architecture Marine Engineering exam. The examination is listed as Marine.

    Michigan 517.241.9253 517.241.9280 fax Dianne Bailey, Assistant Licensing Administrator [email protected] http://www.michigan.gov/cis/0,1607,7-154-10557_12992_14016---,00.html

    Yes **All the scheduling and administering of the exams is done by NCEES

    Minnesota 651.296.2388 651.297.5310 fax Sheri Lindemann, PE Exam Coordinator [email protected] Doreen Frost, Executive Director [email protected] http://www.aelslagid.state.mn.us

    Yes Feb. 16 **

    Mississippi 601.359.6160 601.359.6159 fax [email protected] Rosemary Brister, Executive Director http://www.pepls.state.ms.us

    Yes Dec. 15 **

  • SURVEY OF STATE LICENSING BOARDS

    As of 12-31-08 State: Lic. Board tele. Number

    Offering NA/ME April 2004

    Anticipated Application Deadline

    Comment:

    Missouri 573.751.0047 573.751.8046 fax [email protected] Judy Kempker, Executive Director [email protected] http://www.ecodev.state.mo.us/pr/moapels

    Yes * Dec. 1 * The filing deadlines in which to apply with the Board to take the April24, 2009 PE exam are as follows: Final Application Filing Deadline - December 1, 2008. Evaluation Application Filing Deadline - December 1, 2008. Re-Exam/Re-Scheduling Filing Deadline - February 15, 2009. Once you're approved by the Board you will then need to register with the National Council. You will be advised of the National Council's deadline when you receive your approval letter from the Board

    Montana 406.841.2367 406.841.2332 fax [email protected] Todd Boucher, Program Administrator/Investigator [email protected] http://www.discoveringmontana.com/ dli/bsd/license/bsd_boards/pel_board/board_page.htm

    Yes Dec. 10 **

    Nebraska 402.471.2021/2407 402.471.0787 fax [email protected] Charles Nelson, Executive Director http://www.ea.state.ne.us

    Yes Jan. 12 *

    Nevada 775.688.1231 775.688.2991 fax [email protected] Lane Garrison, Examination Administrator Noni Johnson, Executive Director [email protected] http://www.boe.state.nv.us

    Yes See www.boe.state.nv.us for deadline; usually about January 20

    *

    New Hampshire 603.271.2219 603.271.6990 fax Louise Lavertu, Executive Director [email protected] http://www.state.nh.us/jtboard/home.htm

    Yes Feb. 1 * * for the application and all supporting documentation

  • SURVEY OF STATE LICENSING BOARDS

    As of 12-31-08 State: Lic. Board tele. Number

    Offering NA/ME April 2009

    Anticipated Application Deadline

    Comment:

    New Jersey 973.504.6460 973.273.8020 fax Arthur Russo, Executive Director [email protected] http://www.state.nj.us/njbiz/s_license_engineers_surveyors.shtml

    Yes Oct. 3

    New Mexico 505.827.7561 505.827.7566 fax Elena Garcia, Executive Director [email protected] http://www.state.nm.us/pepsboard

    No **Insufficient demand

    New York 518.474.3817 ext 140 518.473.6282 fax [email protected] Jane Blair, Executive Secretary http://www.op.nysed.gov

    Yes Nov. 1 **

    North Carolina 919.841.4000 919.841.4012 fax Andrew L. Ritter, Executive Director [email protected] http://www.ncbels.org

    Yes Jan. 2 **

    North Dakota 701.258.0786 701.258.7471 fax [email protected] Candie Robinson Clifford E. Keller, Executive Secretary

    Yes Jan 2 (if a weekday)

    **

    Northern Mariana Islands (011) 670.234.5897 (011) 670.234.6040 fax Florence C. Sablan, Executive Director [email protected]

    Yes Jan. 1 *

    Ohio 614.466.3651 614.728.3059 fax Mark T. Jones, PS, Executive Director [email protected] http://www.ohiopeps.org

    Yes 90 days prior to exam date

    **

    Oklahoma 405.521.2874 ext. 25 405.523.2135 fax Sue Andrews [email protected] Kathy Hart, Executive Director [email protected] http://www.pels.state.ok.us/

    Yes Jan. 3 **Residency requirement

  • SURVEY OF STATE LICENSING BOARDS

    As of 12-31-08 State: Lic. Board tele. Number

    Offering NA/ME April 2004

    Anticipated Application Deadline

    Comment:

    Oregon 503.362.2666 503.362.5454 fax Edward B. Graham, P.L.S., Executive Secretary [email protected] http://www.osbeels.org

    No **Recommends exam proctored by Washington State, licensing in Oregon by comity

    Pennsylvania 717.783.7049 717.705.5540 fax [email protected] Shirley S. Klinger, Board Administrator http://www.dos.state.pa.us/bpoa/engbd/mainpage.htm

    Yes Dec. 1 **

    Puerto Rico Board of Examiners of Engineers and Land Surveyors P.O. Box 9023271 San Juan, Puerto Rico 00902-3271 787.722.0058 787.722.4818 fax Executive Director: Marcos R. Velez Green

    Yes Per 2001 survey

    Rhode Island 401.222.2565 401.222.5744 fax Lois Marshall, Administrative Assistant [email protected] http://www.bdp.state.ri.us

    No *No Group II exams offered. No Comity offered

    South Carolina 803.896.4422 803.896.4427 fax [email protected] Jay Pitts, Board Administrator http://www.llr.state.sc.us/POL/Engineers

    Yes Dec. 1 **

    South Dakota 605.394.2510 605.394.2509 fax Ann Whipple, Executive Director [email protected] http://www.state.sd.us/state/executive/dcr/engineer/eng-hom.htm

    Yes * Jan. 1 **The deadline for initial application completion (everything must be received by this office) is January 1. Repeat exam deadline is February 10.

    Tennessee 800. 256-5758 615.741.3221 615.532.9410 fax Barbara Bowling, Executive Director [email protected] http://www.state.tn.us/commerce/ae.html

    Yes Dec. 1 **

  • SURVEY OF STATE LICENSING BOARDS

    As of 12-31-08 State: Lic. Board tele. Number

    Offering NA/ME April 2004

    Anticipated Application Deadline

    Comment:

    Texas 512.440.3054 512.442.1414 fax [email protected] David J. Lusk, P.E., Director of Licensing [email protected] www.tbpe.state.tx.us

    Yes Was Jan. 3 for 2003 exam; expect date prior to Christmas for 2004 exam

    **

    Utah 801.530.6632 801.530.6511 fax Douglas Vilnius, Board Administrator [email protected] http://www.dopl.utah.gov

    Yes February

    Vermont 802.828.2875 802.828.2368 fax Loris Rollins [email protected] http://www.vtprofessionals.org

    Yes 12 weeks prior to exam date

    *

    Virginia 804.367.8512 (Board) 804.367.8514 (Administrator) 804.367.2475 fax [email protected] Mark N. Courtney, Administrator www.state.va.us/dpor

    Yes See www.state.va.us/dpor Deadline for 2003 exam was Dec. 13

    **

    Virgin Islands 340.773.2226 340.778.8250 fax [email protected] Lisa Davis, Administrator http://www.dlca.gov.vi/pro-aels.html

    Yes Jan. 31

    Washington 360.664.1575 360.664.2551 fax [email protected] George Twiss, P.L.S., Executive Director [email protected] http://www.dol.wa.gov/engineers/engfront.htm

    Yes 4 mo. prior to exam

    **For example, for the April 2009 examination, the deadline would be 12-24-08

  • SURVEY OF STATE LICENSING BOARDS

    As of 12-31-08 State: Lic. Board tele. Number

    Offering NA/ME April 2004

    Anticipated Application Deadline

    Comment:

    West Virginia 304.558.3554 304.558.6232 fax [email protected] Lesley L. Rosier, P.E., Executive Director [email protected] www.wvpebd.org

    Yes 90 days prior to exam

    **

    Wisconsin 608.261.7096 608.267.3816 fax Darwin Tichenor, Office of Examinations 608.267.9362 [email protected] Otis Nicksion, Director [email protected] http://www.drl.state.wi.us

    Yes 60 days prior to exam

    Wyoming 307.777.6155 307.777.3403 fax [email protected] Christine Turk, Executive Director [email protected] http://www.wrds.uwyo.edu/wrds/borpe/borpe.html

    Yes Jan. 1 *

    *Licenses issued as a discipline-specific engineer restricted in practice in a specific field, which is usually the discipline of the professional examination taken for licensure. **As a professional engineer, allowed to practice in his/her area(s) of competency, regardless of which discipline of the professional examination was taken for licensure. As indicated in the table above, the deadlines for filing applications vary widely from state to state and you should allow ample time to assemble the required data and complete the application process. Description of Examination Examination Schedule The NCEES examination in Naval Architecture and Marine Engineering is in a multiple-choice, no choice format and is given only in the spring of each year, typically the second, third, or fourth Friday of April. You should contact your state board to determine specific dates and locations. A summary of currently planned Future P.E. Examination Dates for Naval Architecture and Marine Engineering is given below:

  • Friday, April 24, 2009 Friday, April 12, 2013 Friday, April16, 2010 Friday, April 11, 2014 Friday, April 8, 2011 Friday, April 17 2015 Friday, April 13, 2012 Friday, April 15, 2016 The Fundamentals of Engineering (FE) examination is held on the Saturday following the Friday of the P.E. Exam. Examination Content The Principles and Practice examination in Naval Architecture and Marine Engineering (NAME) covers a broad range of subject matter, the foundations for which are developed in the academic programs of accredited curricula. The table below indicates the subject areas covered in the examination along with their approximate examination weighting. The NAME examination is 8 hours in duration and given in an open-book style, however, unbound materials are generally not allowed and you should find out from your state board what restrictions they may have on materials that may be brought into the examination room. The examination is composed of 80 multiple-choice questions, 40 in the A.M. session and 40 in the P.M. session. The questions are estimated to take approximately 6 minutes to answer, on average, and generally require some computation to be carried out. All questions are independent and equally weighted, so time management is important. If a problem solution is not immediately apparent, it is usually wisest to skip to the next one and return later when time might still be available. EXAMINATION SPECIFICATION Refer to the table below for the Examination Specification and Subject Area weighting:

    THE NATIONAL COUNCIL OF EXAMINERS FOR ENGINEERING AND SURVEYING PRINCIPLES AND PRACTICE OF ENGINEERING EXAMINATION Naval Architecture-Marine Engineering Examination EFFECTIVE (April 2008)

    Approximate Percentage of

    Examination (probs) I Engineering Fundamentals

    A Mechanics

    1 rigid body (static, dynamic, equilibrium) 2 deformable body (static, dynamic, equilibrium, elastic, inelastic)

    B Loads

    1 axial, lateral, flexural, torsional and shear (e.g. tension & compression, bearing), thermal, fatigue

    2 fluid loads (static & dynamic, pressure induced, hydrostatic, hydroelastic) 3 specialized marine loads including cargo, seaway induced (e.g. slamming

    25% (20)

    6% (5)

    8% (6)

  • and impact), collision, grounding, drydocking , launching, and moorings

    C Welds/Connections and Structure 1 connectors and fasteners (e.g., rivets, bolts, adhesives) and bi-metallic

    joints (e.g. explosion bonding) 2 welding design and procedures (stresses, symbols, filler materials,

    methods, inspection and testing) 3 structural elements including frames, beams, girders, trusses, plates,

    columns, pillars, stanchions, clips, brackets, knees, gussets, and flexible strength members (e.g., stays and shrouds)

    4 structural applications and considerations including hull girder, midship section, buckling, stress concentration, fatigue, corrosion, foundations, stiffened elements (e.g. shell, bulkhead, deck), finite element models - FEM (boundary conditions, element selection), and appendages

    D Vibration 1 local vibration including vortex induced, flow induced, machinery

    induced, e.g., propulsor, shafting (torsional, axial, whirling) 2 global vibration including hull girder and seaway induced (e.g., whipping,

    springing, slamming)

    II Naval Architecture A Stability and Flotation and Dynamic Stability and Vessel Response

    1 stability principals (static and dynamic), intact and damaged, stability criteria, righting arm, free surface effect, stability aground, cargo shift, submerged and transitional stability, stability while towing or lifting

    2 stability methods and procedures including computation and curves (e.g. displacement curves, Bonjean curves, cross curves), integration methods (e.g., Simpsons rule, trapezoidal rule), and tests (inclining and sallying)

    3 dynamic stability in waves, including forces and motions caused by wind and waves, response amplitude operators, towing, parametric roll, porpoising, broaching, chine walking, flow effects (e.g. squat, bank suction, channel effect, passing)

    B Hydrodynamics 1 hydrodynamic/aerodynamic resistance and propulsion, including

    cavitation 2 propulsor and appendage design 3 maneuvering and directional stability, including dynamic positioning and

    steering, rudders and control surfaces 4 seakeeping and added mass 5 hull modes, including displacement, planing and semidisplacement and

    foil borne 6 computational fluid dynamics and application of analytical design tools

    such as strip or diffraction theories

    C Wind and Waves 1 wave spectra 2 currents 3 tides

    7% (6)

    4% (3)

    30% (24)

    11% (9)

    8% (6)

    5% (4)

  • 4 wind scale 5 sea state

    D Hull Forms

    1 conventional displacement monohulls including barges 2 special hull forms including sailboats, semidisplacement, planing, surface

    effect ships, air cushion vehicles, hydrofoils, submersible (e. g. submarine), semisubmersible and SWATH

    3 multi-hulls (e.g. catamarans, trimarans, cathedral hulls, pontoons) 4 sailboats

    III Marine Engineering

    A Thermodynamics

    1 Thermodynamics fundamentals (e.g. conservation of mass and energy, heat balance including power cycles, fluid properties (enthalpy, entropy), and combustion)

    2 Heat transfer and heat exchangers

    B Internal Fluid Flow 1 piping system components (e.g. valves and control devices, strainers,

    filters, sea chests, sea cocks) 2 system requirements, layout, and calculations (e.g., pipe flow, resistance,

    pressure drop, viscosity, limiting flow speeds, flow effects including noise, cavitation, and pipe hammer)

    3 hydraulics 4 pumps (including NPSH) and compressors

    C Propulsion and Power Generation

    1 power systems including steam plants, internal combustion engines, nuclear plants, fuel cells, solar power, wind power, and electric drive

    2 fuels (properties, handling systems, effects on equipment)

    D Machine Design 1 gearing, shafting, and bearings 2 lubrication (lubricants, properties, systems)

    E HVAC/Refrigeration

    1 HVAC systems including cargo dehumidification, chilled water systems, ventilation systems, vessel lay-up, combining elements from refrigeration (e.g. psychrometrics, enthalpy)

    F Electrical Systems 1 electrical equipment including energy conversion devices (e.g. motors,

    generators and transformers), batteries, cables, circuit breakers, lighting, rectifiers, electronic devices, VFD & SCR systems, emergency power supply (e.g. UPS), clean power systems

    2 electrical systems including system analysis and design, distribution and power circuits, power factors, voltage loss, short circuit analysis, breaker coordination, degaussing systems, and determination of the optimal number of power sources and voltages

    6% (5)

    26% (21) 4% (3)

    5% (4)

    6% (5)

    4% (3)

    2% (2) 5% (4)

  • IV Common

    A Materials, Corrosion and Corrosion Control

    1 structural materials and properties (e.g. strength, elongation and fatigue strength), ferrous and non-ferrous metals, plastics and composite materials, wood, concrete

    2 other materials and considerations including composite construction processes (e.g. compatibility, laminating, resin infusion, vacuum-bagging, closed molding), ballast materials, sail materials (e.g. Dacron, cotton, carbon fiber, aramid), ropes, and cables

    3 elements of corrosion including galvanic series, general wastage, pitting, crevice and stress corrosion, fretting, and stray currents

    4 corrosion control applications including impressed current systems, sacrificial anodes, bonding and grounding, and coating selection and procedures

    B Navigation and Vessel Control 1 bridge layout 2 visibility 3 understanding of integrated bridge system

    C Hull Outfitting

    1 steering gear, winches and mooring equipment, including ground tackle, fenders, deck fittings (e.g. bollards and bitts, chocks), cranes and cargo gear (e.g. closed loading/unloading systems, cargo pumps and vapor recovery), hull closure devices (e.g., doors, sideports, hatchcovers), pin systems (Articulated Tug-Barges), ramps, ladders (e.g. pilot ladders), gangways, conveyors, tank gauging, tank washing systems, inert gas systems, and mission specific equipment

    2 accommodation outfit including insulation (e.g. structural fire protection, acoustic, thermal), ladders, joiner work, furnishings, galley equipment, and deck covering

    D Weight Engineering 1 weights and centers 2 weight controls, including margins, allowances and statistics

    E Shipbuilding and Repair

    1 shipbuilding and repair, launching, drydocking, surface preparation and coatings, shaft alignment, ship breaking and disposal, maintainability, rigging, and material handling

    2 quality assurance including deflection and distortion controls, inspection, surveys, testing, trials, and commissioning

    F Economics

    1 engineering and ship economics including life cycle costs, disposal costs, depreciation, cost-benefit analysis (e.g., net present value), multiple cost savings (e.g., learning curve), project cost estimating (e.g., acquisition, operation)

    2 trade and market analysis, financing, and subsidies

    19% (15)

    3% (2)

    1% (1)

    3% (2)

    2% (2)

    3% (2)

    2% (2)

  • G Rules And Regulations, Human Factors, Safety Systems, Procedures and

    Manuals, and Pollution Prevention 1 statutory requirements including regulatory agency requirements (e.g., US

    Coast Guard, OSHA, EPA, ADA), admeasurement and international conventions and agreements (e.g. IMO, STCW, MARPOL, SOLAS)

    2 construction, design and inspection standards including classification Societies (e.g. ABS, Alternate Compliance Programs), ABYC, ASTM, NFPA, MCA, IEEE, AWS, Panama Canal Regulations

    3 safety issues including emergency egress and fatigue 4 fire fighting systems and equipment (e.g., fire main, foam, CO2, fire

    fighter outfits, alarms, fire prevention) 5 life saving equipment including lifeboats, life rafts, davits, rescue boats,

    inflatable buoyant apparatus (IBA), personal flotation devices, survival suits

    6 cargo loading, trim and stability booklet, loading computers 7 emergency plan and procedures including damage control, Fire Control

    Plan, International Safety Management, ISPS, periodic safety test procedures, spill response (OPA 90)

    8 prevention and treatment of air, liquid and solid pollution including biological contaminants (e.g., OWS equipment, sewage systems, incinerators, exhaust emissions, VOC - Volatile Organic Compound control, antifouling coating constituent release), and HAZMAT control

    5% (4)

    V Notes:

    1. The examination is developed with problems that will require a variety of approaches and methodologies including design, analysis and application. Some problems may require knowledge of engineering economics.

    2. The knowledge areas specified under 1, 2, 3, or as e.g. are examples of kinds of knowledge, but they are not exclusive or exhaustive categories.

    3. This examination contains a total of eighty (80) multiple-choice questions. Examinee works all questions.

    Examination Development Examination Validity In order to assure the validity of the Principles and Practices examination, a survey of practitioners was conducted in 1995-96 in which the critically required knowledges and skills were identified. The results of the survey analysis allowed the subject areas and their weightings to be determined. The survey will be repeated periodically in order to keep the requirements current with developments in the field. Based on the examination specification, examination questions are developed by and selected for inclusion in an examination by a group of currently licensed practitioners. The questions are multiply reviewed to insure appropriateness, completeness and accuracy. Examination Content Outlines

  • Due to the breadth and depth of knowledges and skills required for the practice of naval architecture and marine engineering, the subject areas covered in the examination typically include multiple elements, only a few of which can in any examination be adequately covered. Thus, there are significant differences in the content of questions covering a subject area in succeeding examinations, though the questions are intended to give as broad coverage as possible. Examination Preparation and Review The questions are submitted by working professionals and put into the approved NCEES format by SNAME staff. Upon assembly, the examination is sent to NCEES for preparation in the proper format, returned to SNAME for proofing and finally back to NCEES for preparation in the examination booklet format.

    Minimum Competency In order to properly assess minimally competent performance, it is necessary to establish a standard that can be used in assessing the minimum level of knowledge and skill required to protect the public health and safety. This standard is then used to arrive at a satisfactory level of examination performance. This is done through the conduct of a Cut-Score Study in which a broadly diverse group is tasked with arriving at a standard and using that standard to assess the expected performance of the examinees. The analysis of the study results allows the determination of a recommended pass-point for the examination, which is presented to the NCEES Board for its decision. The current standard (May 2008) is presented below:

    NCEES Naval Architect and Marine Engineer Examination Standard of Minimal Knowledge, Skills and Abilities

    A minimally competent Naval Architect and Marine Engineer demonstrates sound engineering judgment in the application of science and engineering principles and practices to the design of vessels, marine craft, and offshore structures. The minimally competent engineer shall:

    Be knowledgeable of global and local ship structure, its arrangement, weight and load bearing capability, and its interrelation with the marine environment, giving due consideration to environmental degradation and external loads such as wind and waves.

    Be knowledgeable concerning ship resistance and energy conversion, its application

    to ship propulsion, power plant selection and ship system design.

  • Be knowledgeable of the principles and practices of marine engineering including chemical, thermal, mechanical, environmental, pollution-prevention, and electrical systems, and component selection and integration.

    Be knowledgeable of the principles and practices of hydrostatics, stability, and

    hydrodynamics. Be knowledgeable of the effects of changes of ship form and parameters on dynamic

    response, seakeeping and controllability. Be able to size, select, specify, and evaluate ship components and their materials of

    construction. Be knowledgeable of the life-cycle economic effects of ship design characteristics,

    component selection and operations. Be knowledgeable concerning constraints and practicability of shipbuilding, ship

    repair, and operational maintainability.

    Be knowledgeable concerning fire fighting, structural fire protection, life saving, ship survivability, personnel safety and associated systems.

    Be aware of and be able to apply applicable codes and standards.

    Be knowledgeable concerning vessel mission and its effect on design.

    Be aware of computer applications as they apply to naval architecture and marine

    engineering. Scoring Procedures As the weighting of each item on the examination is the same, the raw score for the examinee is equal to the number of items whose answers are correctly selected. Evaluation of the pass/fail score is determined by the results of the Cut-Score Study conducted with a panel of Subject Matter Experts. Study References for Naval Architecture and Marine Engineering

    To start with, the prospective examinee should collect the professional references already suggested in Marine Technology and elsewhere, as summarized below:

    Introduction to Naval Architecture, E. Tupper, 1996, INA/SNAME Principles of Naval Architecture, E.V. Lewis, 1988, SNAME

  • Applied Naval Architecture, R. Zubaly, 1996, SNAME Ship Design and Construction, R. Taggart, 1980, SNAME Ship Production, R.L. Storch, C.P. Hammon, H.M. Bunch & R.C. Moore, 1995, SNAME Fiberglass Boat Design and Construction, R.J. Scott, 1996, SNAME Marine Engineering, R.L. Harrington, 1992, SNAME Elements of Ocean Engineering, R.E. Randall, 1997, SNAME Rules for Building and Classing Steel Vessels, American Bureau of Shipping, (ABS) Rules for Building and Classing Plastic Vessels, 1978, ABS Rules for Building and Classing High Speed Planing Craft, 1997, ABS U.S. Code of Federal Regulations, Titles 33 and 46 (CFR 33 and CFR 46)

    Note: The above Rules and Codes are available Online and need not be obtained in Hard Copy. When Rules and Codes are cited and to be used for developing solutions in the NAME Examination, they will be provided in the Item Statement.

    For Examination Procedures and Instructions Examination Booklets Answer Sheets Starting and Completing the Examination

    References Special Accommodations Go to: http://www.ncees.org/exams/ Much more useful information is also available of the NCEES Web Site

  • SAMPLE EXAMINATION Sample Examination Questions The following questions concern Subject Areas of the NAME Examination specification in the approximate weighting of the examination. The solutions of these questions have not been timed and do not necessarily reflect any specific problems that have been or will be on an NAME examination. Sample NAME Exam Problem No. 1, Spec. Number: I.A.1.a Subject: Mechanics 1 A shear leg, composed of three pipe sections in a tilted tripod arrangement, is mounted at the bow of a square-ended barge (as indicated in the figure below), so to be suitable for hoisting and lowering mooring anchors and buoys in a mooring field. The design calls for a lift capacity of 5 tonnes. The forward two side-legs are 10 meters long and their base connections (in clevises) are set 12 meters apart. The third leg is 12.8 meters long with its base attached 8 meters aft of the axis of the other two legs bases. The third leg is attached to its base connection with a round pin connected through a Clevis B. The pin is thus in double shear. The hoisting cable passes over a sheave at the apex of the tripod and is attached to a winch mounted on the third leg as shown. The design shear stress of the pin is 16 MPA. The required diameter (mm) of the third legs clevis-pin is most nearly: A) 10 B) 20 C) 30

    D) 40

  • Sample NAME Exam Problem No.2, Spec. Number: I.A.1.b Subject: Mechanics 2 A commercial vessel is to be outfitted with a radar antenna, of 250 kg mass, atop a 10-meter stayed mast that is mounted on the flying bridge. The flying bridge is located 30 meters above the ships base line and the vessel has a design draft of 10 meters. The installation is to be designed to sustain a roll-amplitude of 35 degrees with a 6 second period of roll. The mast is to be simply supported at its base and stayed transversely and fore and aft by shrouds connected at its top that are attached to flying bridge structure five meters fore and aft and outboard Port and Starboard from the mast base. The design loading of the transverse shrouds (kilonewtons) due to vessel rolling is most nearly: A) 5 B) 14 C) 28 D) 50 Sample NAME Exam Problem No. 3,Spec. Number: I.A.2.a Subject: Mechanics 3 A 10-ton plate-yard crane is to be mounted on a light-weight, simply supported beam having a 40 foot span. In order to provide adequate beam stiffness, a design criterion restricts mid-span deflection to 1/360 of the span. The lightest weight American Standard I-Beam that meets this criterion is most nearly:

    A) S 20 x 75.0 B) S 20 x 65.4 C) S 18 x 70.0

    D) S 18 x 54.7 Sample NAME Exam Problem No. 4, Spec. Number: I.A.2.b Subject: Mechanics - 4 A longitudinally stiffened section of 20.4 pound deck plating, and having a yield strength of 36 ksi, is fitted with 8 x 4 x 9/16 inverted angles stiffeners, spaced on 30 inch centers. A naval architect is tasked to check the buckling stress (ksi) and finds it to be most nearly: A) 33

    B) 30 C) 27 D) 24

  • Sample NAME Exam Problem No. 5, Spec. Number: I.A.2.c Subject: Mechanics - 5 A longitudinally stiffened section of deck plating is composed of 20mm plate fitted with 200mm x 100mm x 13mm inverted angles, spaced on 750mm centers. The plate-stiffener Section Modulus (103 mm3) is most nearly: A) 4550

    B) 3980 C) 439 D) 407

    Sample NAME Exam Problem No. 6, Spec. Number: I.B.1.a Subject: Loads - 1 An electric motor drives a saltwater circulating pump through a coupling connecting their shafts. The motor delivers 150 horsepower at 900 RPM. The steady state torque transmitted (foot-pounds) by the shaft coupling is most nearly:

    A) 1750 B) 875 C) 91.7 D) 15.1 Sample NAME Exam Problem No. 7, Spec. Number: I.B.1.b Subject: Loads - 2 A longitudinally stiffened Tween deck is to be designed to carry a live load of 1200 pounds per square foot. The supporting arrangement of the deck consists of a set of longitudinal girders (spaced at 25 feet) and main-transverse web-frames (spaced at 30 feet). At the intersection of each longitudinal girder and main-transverse web-frame, a pillar (or stanchion) is placed to support the load. The longitudinal stiffener spacing is 30 inches. Neglecting the dead load of the structure, the axial load on a pipe-section stanchion (Long Tons) and the longitudinal stiffener design load (Pounds per foot) are most nearly:

    A) 450, 1.5 B) 450, 300 C) 400, 1200 D) 400, 3000

    Sample NAME Exam Problem No. 8, Spec. Number: I.B.1.c Subject: Loads 3

    A channel section (C 15x50) is loaded as shown below with the lateral loading in line with the section center of gravity, the geometric center of the section. In addition to the vertical shear and bending considerations, a twisting moment is generated (inch-pounds per foot) that is most nearly:

  • A) 1,700 B) 960 C) 700 D) 550 1200

    lbs/ft

    15 ft

    1200 lbs/ft

    Geometric Center

    Sample NAME Exam Problem No.9, Spec. Number: I.B.2.a Subject: Loads 4 A luffing and slewing crane, to be located on a vessels foredeck for anchor handling and other miscellaneous work, is to have a capacity of 5 tons when extended horizontally to its maximum length of 45 feet. Crane luffing is controlled by a hydraulic cylinder ram attached 6 feet below the connection between the crane boom and the pedestal and 6 feet outboard of the connection. In the fully extended position stated, the load (Tons) on the hydraulic ram is most nearly: A) 40 B) 50 C) 200 D) 300 Sample NAME Exam Problem No.10, Spec. Number: I.B.2.b Subject: Loads 5 The transverse bulkhead of a single-shell salt-water ballast deep tank, extending from the deck to the bottom, of a liquid cargo barge (20 feet deep) is horizontally stiffened. The stiffeners are at a 24-inch spacing and supported by vertical webs 12 feet apart. The tank vent extends to 36 inches above the deck. The design load on the bottom-most stiffener (pounds per foot) is most nearly:

    A) 2700 B) 2300 C) 1300 D) 1100

  • Sample NAME Exam Problem No.11, Spec. Number: I.B.3.a Subject: Loads 6 A container vessel proceeding in a seaway experiences pitch amplitudes of 12 degrees with a pitch period of 7 seconds. The vessel is 870 feet long and the center of flotation is located 0.08 L aft of midships. The maximum vertical acceleration (g) deck cargoes experience on the foredeck at 0.05L aft of the Forward Perpendicular due to the pitching is most nearly: A) 1.0 B) 2.4 C) 3.0

    B) 3.4 Sample NAME Exam Problem No.12, Spec. Number: I.C.1.a Subject: Welds/Connections and Structure - 1 A 150 H.P. electric motor is to drive a main circulating pump with a maximum speed of 900 RPM. The motor and pump shafts are connected by a flanged coupling having six, inch diameter steel bolts. If the shear stress in the coupling bolts is not to exceed 13.5 ksi, with a factor of safety of 4.0, the bolt circle diameter (inches) must be not less then:

    A) 4 B) 5 C) 6 D) 7

    Sample NAME Exam Problem No.13, Spec. Number: I.C.1.b Subject: Welds/Connections and Structure 2 An Upper Engine Room hoisting winch for use in main engine overhaul work is to be mounted on a removable I-beam that spans the 20-foot wide engine room casing. The hoist is to have a 5 L.Ton capacity, and the connection brackets at each end of the I-beam are to be fitted with bolts adequate to resist the shear force and bending moments generated when the hoist is located at mid-span with the maximum shearing force in the bolts not to exceed 13,500 psi. The bracket bolts are to be six in number and in a single line with 3-inch spacing. The diameter of the bolts (eighths of an inch) need to be not less than:

    A) 6 B) 8 C) 10 D) 12

  • Sample NAME Exam Problem No.14, Spec. Number I.C.1.c Subject: Welds/Connections and Structure - 3

    The deck plating of a tank barge is selected as 12mm, with a material yield stress of 220.6 MPa or 32 ksi. The selection of longitudinal deck plate stiffeners is decided to be on the basis that the plate buckling stress is not to exceed 85% of the materials yield stress. If Poissons Ratio for the steel is 0.30, and the Elastic Modulus (E) of the steel is 30 x 106 psi, or 206.8 GPa, the maximum spacing of the longitudinal stiffeners (mm), assuming the plate panels may be considered long, i.e., have an aspect ratio of 3.0 or greater, is most nearly: A) 800 B) 750 C) 700 D) 650 Sample NAME Exam Problem No.15, Spec. Number: I.C.2.a Subject: Welds/Connections and Structure 4 A -inch thick flanged bracket is to be used to transfer force and moment between the web of a horizontal 8 x 4 x inverted angle deck longitudinal and the web of a vertical 8 x 4 x bulkhead stiffener. The fitting of the bracket allows for a 5 x 10 rectangular fillet weld configuration. If the shear force to be transmitted is estimated to be 3.5 L Tons and the moment to be transferred is estimated to be 9.4 L Ton-Ft., the minimum weld size (in 1/16 increments) needed to keep the maximum shear stress in the weld within the13,600 psi allowable stress for the material is most nearly: A) 3

    B) 4 C) 5 D) 6

  • Sample NAME Exam Problem No.16, Spec. Number: I.C.2.b Subject: Welds/Connections and Structure 5 A C15 x 50-channel section is selected to act as a temporary (easily removable) beam in an engine space. It is to be connected in position using a .375 inch thick gusset plate attached to support structure. The channel section is to be connected to the gusset plate with eight (8) bolts using a 3.0-inch pitch and a 4.0-inch back pitch. Assume the bolts have an allowable shear stress of 13.6 ksi. The bolt shank size (inches) you would select to support an expected direct joint load of 4.0 L. ton and a moment of 10 L.-ton-feet is most nearly:

    A) 3/4 B) 7/8 C) 1 D) 1-1/8

  • Sample NAME Exam Problem No.17, Spec. Number: I.C.2.c Subject: Welds/Connections and Structure 6 Two mild steel 3-in by 4-in by 3/8-in angles are to be welded to a 1/2 in thick gusset plate as indicated in the sketch below with 5/16-in welds. The yield strength of the material is 33 ksi and the allowable shear stress through the weld throats is 13.6 ksi. The required length of weld L1 (inches) will be most nearly: A) 36 B) 18 C) 12 D) 8

    Sample NAME Exam Problem No.18, Spec. Number: I.D.1.a Subject: Vibrations 1 A marine engineer is tasked to determine the vibration characteristics of a ships propeller and propulsion shafting system. The 30 meter long, steel propeller shaft is hollow, having an outside diameter of 0.6m and an inside diameter of 0.3 m. As part of a simple mass-spring vibrating system, the effective spring constant, ke, (N/m) of the shafting acting with the propeller mass is most nearly: A) 5,800 B) 1940 C) 1850 D) 1460

  • Sample NAME Exam Problem No.19, Spec. Number: I.D.1.b Subject: Vibrations 2 A motor generator set, weighing 1,900 pounds, is mounted at mid-span of a simply-supported deck beam having a moment of inertia of 26.0 inches4, a section modulus of 8.7 inches3 and a length of 12 feet. The lowest motor rotating speed (RPM) capable of exciting the fundamental mode of a simple mass-beam system is most nearly: A) 1,500 B) 1,000 C) 500 D) 250 Sample NAME Exam Problem No.20, Spec. Number: I.D.3.c Subject: Vibrations - 3 A 20,000 ton displacement cargo vessel having a four bladed propeller is estimated to have vertical vibration natural frequencies (Hertz), as follows: 2-noded, 1.2, 3-noded, 2.2, 4-noded, 3.0 and 5-noded, 4.0. The vertical mode of vibration most likely to be excited when the vessel is in the maneuvering mode at 60 RPM is:

    A) 2-noded B) 3-noded C) 4-noded D) 5-noded

    Sample NAME Exam Problem No.21, Spec. Number: II.A.1.a Subject: Stability, Flotation, Dynamic Stability and Vessel Response - 1 A vessel having the characteristics listed below has an Initial GM of 3.2 feet when all fuel and water tanks are pressed up to 98% capacity. Length Between Perpendiculars 580 feet Beam 72 feet Draft 24 feet Double Bottom Depth 5 feet Displacement 20,600 L.Tons KM 31.6 feet The vessel has four cargo deep tanks, each 35 feet long, 36 feet wide and 14 feet deep. A cargo of molasses (specific gravity 1.4) is loaded into the deep tanks until the tanks are filled to a depth of 10 feet. Assuming that KM remains the same, the apparent GM, with the deep tanks partially filled with molasses, is (feet) most nearly: A) 4.71 B) 4.16 C) 2.44 D) 2.23

  • Sample NAME Exam Problem No.22, Spec. Number: II.A.1.b Subject: Stability, Flotation, Dynamic Stability and Vessel Response - 2 A cargo ship having a rolling period of 14 seconds sustains an accident that causes the flooding of one of its holds. After the accident, the rolling period is 21 seconds. The percent loss of transverse GM is most nearly: A) 35

    B) 45 C) 55 D) 65

    Sample NAME Exam Problem No. 23, Spec. Number: II.A.1.c Subject: Stability, Flotation, Dynamic Stability and Vessel Response - 3 A vessel having the characteristics given below has 250 tonnes of fuel transferred from the No. 2 Center Double Bottom tank, located 32 meters aft of the F.P. to the No. 6 Center Double Bottom tank, located 96 meters aft of the F.P., a distance of 64 meters. Vessel characteristics: LBP 165 meters Beam 23.5 meters Displacement 24,300 tonnes Block Coefficient 0.72 Longitudinal Center of Flotation -6.2% of LBP (aft of midships) TPcm 28.50 MTcm 557 tonne-meters If the vessel is initially on an even keel with a mean draft of 8.5 meters, the draft forward (meters) after completing the fuel transfer will be most nearly: A) 8.213 B) 8.339 C) 8.356 D) 8.374 Sample NAME Exam Problem No.24, Spec. Number: II.A.2.a Subject: Stability, Flotation, Dynamic Stability and Vessel Response - 4 An oceangoing vessel has the following characteristics: Length Between Perpendiculars 193 meters Beam 26.066 meters Draft 9.495 meters Displacement 30,743 tonnes Sea Water Density 1.025 tonnes per cubic meter Half-Breadths of the vessel's Waterplane are as given in the tabulation below.

  • Station Half-Breadth (m)

    0 0.171 1.3001 3.8072 8.3003 11.6965 13.0337 12.9658 12.2119 8.815

    9-1/2 6.10610 2.914

    Using Simpsons First Rule, the vessels Tonnes per Centimeter Immersion (TPcm) (tonnes) is

    most nearly: A) 19.5 B) 37.1 C) 39.0 D) 58.5 Sample NAME Exam Problem No.25, Spec. Number: II.A.2.b Subject: Stability, Flotation, Dynamic Stability and Vessel Response - 5 A coastal cargo vessel has the following particulars: Displacement (Tons, Salt Water) 7,500 Length Between Perpendiculars (Ft.) 350 Beam (Ft.) 50 Draft (Ft.) 20 The vessels Block Coefficient (CB) is most nearly: A) 0.73 B) 0.75 C) 0.77 D) 0.79

  • Sample NAME Exam Problem No.26, Spec. Number: II.A.2.c Subject: Stability, Flotation, Dynamic Stability and Vessel Response - 6 The structure and loadings of a rectangular tank barge having dimensions of 100m x 20m x 10mm requires reviewing. The barge has four (4) transverse bulkheads that subdivide it longitudinally into five tank compartments, each 20m in length. It has a double bottom structure of one (1) meter depth and a light displacement of 2,000 tonnes. The basic structure is of single side shell construction and has the following nominal plate thicknesses:

    Deck 12mm Side Shell 10mm Innerbottom 10mm Bottom Plate 14mm The barge is loaded in its three middle tanks to a depth of 6m with a liquid cargo having a specific gravity of 1.5 for transport on a coastwise voyage. The displaced weight (tonnes) and draft (meters) of the barge in salt water are most nearly:

    Displacement Draft A) 5600 2.73 B) 9200 3.51 C) 12800 6.24 D) 18000 8.78

    Sample NAME Exam Problem No.27, Spec. Number: II.A.2.d Subject: Stability, Flotation, Dynamic Stability and Vessel Response - 7 A yacht designer wishes to use an existing yacht as a prototype for a new 55 LOA design. The parent vessel has the following particulars:

    Length Over All 45 11 Waterline Length (LWL) 42 04 Displaced Weight (lbs) 25,500 Sail Area (Ft2) 975 Ballast (lbs) 11,000

    The new, 55 design will have particulars most nearly: Sail Area Ballast

    A) 1,170 13,200 B) 1,240 15,800 C) 1,400 18,900 D) 1,645 24,100

  • Sample NAME Exam Problem No.28, Spec. Number: II.A.3.a Subject: Stability, Flotation, Dynamic Stability and Vessel Response - 8

    A longitudinally stiffened section of 20.4 pound deck plating, and having a yield strength of 36 ksi, is fitted with 8 x 4 x 9/16 inverted angles stiffeners, spaced on 30 inch centers. A naval architect is tasked to check the buckling stress (ksi) and finds it to be most nearly: A) 33

    B) 30 C) 27 D) 24

    Sample NAME Exam Problem No.29, Spec. Number: II.A.3.b Subject: Stability, Flotation, Dynamic Stability and Vessel Response - 9 A small catamaran harbor ferry has a hull form consisting of tubular hulls 15 meters long and 1.0 meter in diameter. The hull centerlines are spaced 8 meters apart. When loaded with passengers until the vessel draft is 0.5 meters, the vessels metacenter is located above the vessel keel (meters) most nearly:

    A) 10.2 B) 10.4 C) 20.4 D) 20.8 Sample NAME Exam Problem No.30, Spec. Number: II.B.1.a Subject: Hydrodynamics 1 A mono-hull sailing yacht having a waterline length of 72 feet and a nominal hull speed of 11.4 knots is to be towing-tank tested using a 12-foot model. The towing tank carriage speed (feet per second) for testing the 12-foot model at the same Froude Number is most nearly: A) 3.4

    B) 3.9 C) 6.8 D) 7.8

    Sample NAME Exam Problem No.31, Spec. Number: II.B.1.b Subject: Hydrodynamics 2 A fuel barge is scheduled to be towed by a harbor tug at an average speed of 6 knots, the barge requiring a tow force at 6-knots estimated to be 88 Tons. Four tugs are available, each having a propulsive efficiency estimated to be 65%. The tug most nearly able to meet the tow power requirements will have (horsepower) available for towing: A) 2,500

    B) 3,250 C) 5,000 D) 6,500

  • Sample NAME Exam Problem No.32, Spec. Number: II.B.2.a Subject: Hydrodynamics 3 Open water model tests of a ships propeller indicate that KT = 0.225 and KQ = 0.031 when the advance ratio, J, is 0.6. The open water propeller efficiency, o is most nearly: A) 0.55 B) 0.60 C) 0.65 D) 0.70 Sample NAME Exam Problem No.33, Spec. Number: II.B.3.a Subject: Hydrodynamics 4 A mid-sized passenger vessel is to be fitted with a set of port and starboard activated-fin stabilizers. The vessel, having a 75 foot beam and a displacement of 25,000 tons usually has a GM of 4 ft. and is expected to be stabilized when operating at 20 knots in a wave system having a nominal wave length of 1,000 feet and a wave height of 15 feet. If the distance from the vessels center of gravity to the mid-length of the activated fin is approximately 50 feet, the projected area (square feet) of each activated fin should be most nearly:

    A) 55 B) 70 C) 85 D) 90

    Sample NAME Exam Problem No.34, Spec. Number: II.B.4.a Subject: Hydrodynamics 5 A naval architect is tasked to select a propeller for a vessel designed to have a sea speed of 23 knots. Model tests show that the Block 0.60 hull form of interest has a Taylor Wake Fraction of 0.24. The selection of a suitable propeller would be based upon a Speed of Advance (Knots) most nearly:

    A) 17.5 B) 18.9 C) 19.5 D) 20.9

  • Sample NAME Exam Problem No.35, Spec. Number: II.B.5.a Solution Subject: Hydrodynamics 6 A naval architect is tasked to make an evaluation of the performance of one of his companys vessels on the companys trade route and plan for appropriate drydocking. Log book analysis shows that the ships propeller, which has a pitch of 31 feet, turns at 90 RPM, when steaming at full power. The vessel log also notes that the vessel had a distance made good of 650 nautical miles in 24 hours of fair weather travel. Analysis shows that the vessels apparent slip (%) is most nearly: A) 0.8 B) 1.7 C) 11

    D) 16 Sample NAME Exam Problem No. 36, Spec. Number: II.C.1.a Subject: Wind and Waves - 1 The speed (Feet per Second) and Period (Seconds) of a harmonic deep-sea wave 800 feet long is most nearly:

    A) 64, 12.5 B) 91, 12.5 C) 64, 8.8 D) 91, 8.8

    Sample NAME Exam Problem No. 37, Spec. Number: II.C.4.a Subject: Wind and Waves - 2 A naval architect is tasked to evaluate fore deck structural loadings of a container vessel having a length between perpendiculars of 230 meters traveling into head seas at 24 knots, and experiencing a nominal period of encounter of 7 seconds with a pitch amplitude of 10 degrees. The forward most containers are secured in position 0.05 L aft of the forward perpendicular. If the waterplane centroid is located 0.08L aft of midships, the range of vertical acceleration (g), augmented by vessel pitching, and thereby inducing loads on the hull structure, experienced by the forwardmost container will be most nearly: A) -1.75g to + 1.75g B) -2.75g to + 0.75g C) -.75g to + 2.75g D) -2.75g to + 1.75g Sample NAME Exam Problem No.38, Spec. Number: II.C.5.a Subject: Wind & Waves 3 The American Bureau of Shipping (ABS) in the Mobile Offshore Drilling Units rules defines the wind force on vessels as:

  • P = 0.00338 Vk2 Ch Cs lbf/ft2 ; F = P A lbf P = wind pressure Vk = wind velocity in knots Ch = height coefficient Cs = shape coefficient F = wind force A = projected area in ft2 of all exposed surfaces in either the upright or heeled condition

    A 500-foot long vessel with a mean draft of 20 feet has a lateral area of the above water portion of 7,500 ft2. Assuming a shape coefficient of 1.0 and an average height coefficient of 1.10. The wind force (in long tons) and heeling moment (in long ton-feet) on the vessel in a beam wind of 55 miles/hour is most nearly:

    A) 8.5 285 B) 8.5 500 C) 28.5 285 D) 28.5 500

    Sample NAME Exam Problem No. 39, Spec. Number: II.C.5.b Subject: Wind & Waves - 4 A tanker of 250m LWL steams ahead at 17 knots. It encounters a train of deep-water waves having a period of 7 seconds advancing towards the tanker from 50 degrees off the tankers starboard stern. The tankers period of encounter (Seconds) is most nearly: A) 3.05 B) 6.28 C) 14.4 D) 16.0 Sample NAME Exam Problem No.40, Spec. Number: II.D.1.a Subject: Hull Forms - 1 The structure and loadings of a rectangular tank barge having nominal dimensions of 100m x 20m x 10m requires reviewing. The barge is subdivided longitudinally into five tank compartments, each 20m in length. It has a double bottom structure of one (1) meter depth and a light displacement of 1,000 tonnes. The basic structure has the following nominal thicknesses:

  • Deck 12mm Side Shell 10mm Innerbottom 10mm Bottom Plate 14mm The barge is loaded in the three middle tanks to a depth of 6m with a liquid cargo having a specific gravity of 1.5. The barge is to be used to transport the cargo on a coastwise voyage. The midship section moment of inertia (meters4) is most nearly:

    A) 14 B) 17 C) 29 D) 31

    Sample NAME Exam Problem No.41, Spec. Number: II.D.2.a Subject: Hull Forms - 2 A longitudinally stiffened section of deck plating is composed of 20mm plate fitted with 200mm x 100mm x 13mm inverted angles, spaced on 750mm centers. The stiffened plate Section Modulus (103 mm3) is most nearly: A) 190

    B) 200 C) 380 D) 400

    Sample NAME Exam Problem No.42, Spec. Number: II.D.2.b Subject: Hull Forms - 3 A ship having a beam of 32.2 meters and a design draft of 12.2 meters has a bilge radius of 4.5 meters and a Dead Rise of 0.5 meters. The ships midship section coefficient (Cm) is most nearly: A) 0.987 B) 0.978 C) 0.956 D) 0.912 Sample NAME Exam Problem No.43, Spec. Number: II.D.3.a Subject: Hull Forms - 4 A small vessel for ocean service is to be inclined to determine its GM. The vessel dimensions are as follows: LBP = 75 meters Beam = 12.5 meters Draft = 4.5 meters The vessels Block Coefficient, CB = 0.72

  • A 7.5 metric tonne weight is moved transversely a distance of 5.2 meters, causing the vessel to heel 2.6 degrees. The vessels GM (meters) is most nearly: A) 0.15 B) 0.30 C) 0.45 D) 0.66 Sample NAME Exam Problem No.44, Spec. Number: II.D.4.a Subject: Hull Forms - 5 A vessel about to be drydocked in a graving dock has characteristics as listed below: LBP 150 meters Beam 20 meters Draft 4.52 meters Forward 5.36 meters Aft TPcm 22.14 MTcm 125 LCF 0.08L aft of midships Landing Point 0.45L aft of midships The keel loading at the landing point just prior to being fully landed of the docking blocks is most nearly: A) 130 B) 140 C) 155 D) 190 Sample NAME Exam Problem No.45, Spec. Number: III.A.1.a Subject: Thermodynamics - 1 A 250 hp auxiliary turbine is supplied superheated steam at 600 psia and 750oF. The turbine exhausts to an auxiliary exhaust line at 30 psia at saturated conditions. If the turbine has an overall efficieny of 60 %, the steam mass flow rate of the turbine (lbs per hour) is most nearly: A) 500 B) 3,000 C) 5,000 D) 10,000

  • Sample NAME Exam Problem No.46, Spec. Number: III.A.2.a Subject: Thermodynamics - 2 A marine engineer is tasked to check the design of a single-pass, counter-flow heat exchanger used to cool lube oil. The oil enters the heat exchanger at 190oF and is cooled to 150oF while the sea water enters at 85oF and leaves at 120oF. The log mean temperature difference for the heat exchanger is most nearly; A) 30 B) 60 C) 67 D) 105 Sample NAME Exam Problem No.47, Spec. Number: III.A.2.b Subject: Thermodynamics - 3 A consulting marine engineer is tasked by a client to evaluate the performance of a ships ventillation system in order to assess maintenance requirements. After installation of a mounted pitot tube into an inspection port of a 24 inch by 36 inch ventillation fan outlet duct, a measurement indicates a velocity pressure of 0.45 inches of water. The marine engineer calculated that the air flow rate (CFM) was most nearly: A) 900 B) 10,800 C) 16,100 D) 51,000 Sample NAME Exam Problem No.48, Spec. Number: III.B.1.a Subject: Internal Fluid Flow 1 A ships fire main supplies two fire hoses located on the flying bridge level with a sea-water flow rate of 300 gpm. The flying bridge hydrants are located 85 feet vertically above the elevation of the fire pump discharge. The piping system between the fire pump discharge and the hydrant outlets consists of 200 linear feet of 4-inch, Schedule 40 welded steel pipe, six (6), long radius -90 degree elbows, two (2) gate valves and one (1) angle valve, all valves being in the open position when providing service. The pressure drop (psi) between the pump discharge and the hydrant outlets is most nearly: A) 15 B) 37 C) 45 D) 100

  • Sample NAME Exam Problem No.49, Spec. Number: III.B.2.a Subject: Internal Fluid Flow 2 A ship's fire and sanitary pump, its discharge located 8-feet above the ship's Base Line, discharges seawater into a 6-inch I.D. fire main. For fire protection, the fire main system supplies two, hand-held, 2-1/2 inch fire-hoses fitted with 0.75-inch diameter nozzles located on the ship's Flying Bridge, 115 feet above the Base Line, with a 75 psi nozzle pitot tube pressure. The pumping capacity (gallons per minute) required in order to supply the two fire nozzles with the pitot tube pressure stated is most nearly: A) 150 B) 300

  • C) 450 D) 600

    Sample NAME Exam Problem No.50, Spec. Number: III.B.2.b Subject: Internal Fluid Flow 3 A ship's fire and sanitary pump, its discharge located 8-feet above the ship's Base Line, discharges seawater into a 6-inch I.D. fire main. For fire protection, the fire main system supplies two, hand-held, 2-1/2 inch fire-hoses fitted with 0.75-inch diameter nozzles located on the ship's Flying Bridge, 115 feet above the Base Line, with a 75 psi nozzle pitot tube pressure.

  • Assuming the pressure drop in the fire main due to fluid flow losses between the pump discharge and the Flying Bridge nozzles is 25 psi, and ignoring the fluid flow velocity head at the pump discharge, the pump discharge pressure (psi) while supplying the two fire hoses is most nearly:

    A) 100 B) 125 C) 150

    D) 175 Sample NAME Exam Problem No. 51, Spec. Number: III.B.3.a Subject: Internal Fluid Flow - 4 100 gpm of water at 68 degree F. flows through 500 feet of a 2- inch schedule 40 steel pipe, having a nominal surface roughness of 150 x 10-6 ft. The pressure drop (pounds per square inch) over this length is most nearly:

    A) 8 B) 15 C) 75 D) 150

  • Sample NAME Exam Problem No.52, Spec. Number: III.B.4.a Subject: Internal Fluid Flow 5 An electrically driven circulating pump delivers 800 gpm of sea water to a lubricating oil cooler. The total head of 45 feet is developed by the pump. If the pump efficiency is 75%, the brake horsepower (hp) required to drive the pump is most nearly: A) 10 B) 12.5 C) 15 D) 20 Sample NAME Exam Problem No.53, Spec. Number: III.B.4.b Subject: Internal Fluid Flow 6 A ship having a mean draft of 28 feet has a 300 gpm centrifugal pump that has its suction eight (8) feet above the ships baseline. The pump suction is connected to a 4 schedule 40 pipe and delivers 60oF sea water to a heat exchanger. The Net Positive Suction Head Available (ft) at the pump inlet is most nearly:

  • A) 20 B) 34 C) 53 D) 61 Sample NAME Exam Problem No. 54, Spec. Number: III.C.1.a Subject: Propulsion and Power Generation - 1 A ship's fire and sanitary pump, its discharge located 8-feet above the ship's Base Line, discharges seawater into a 6-inch I.D. fire main. For fire protection, the fire main system supplies two, hand-held, 2-1/2 inch fire hoses fitted with 0.75-inch diameter nozzles located on the ship's Flying Bridge, 115 feet above the Base Line, with a 75 psi nozzle pitot tube pressure. Assuming the pump has a suction head of 12 feet, an 85 percent pumping efficiency, p, and discharges 300 gpm at a discharge pressure of 150 psig, the pumps required input shaft horsepower is most nearly:

    A) 15 B) 20 C) 25 D) 30 Sample NAME Exam Problem No. 55, Spec. Number: III.C.1.b Subject: Propulsion and Power Generation - 2 A Water-Jet propulsion installation for a small, sea-going vessel moving at 40 knots has an intake area of 3.5 square feet and a discharge nozzle diameter of 8 inches. Neglecting flow losses, the delivered thrust and horsepower of the Water-Jet is most nearly:

    A) 140,000 2,872 B) 160,000 2,955 C) 280,000 585 D) 320,000 654 Sample NAME Exam Problem No. 56, Spec. Number: III.C.1.c Subject: Propulsion and Power Generation 3 A preliminary design is being developed for a 26-knot containership. Model tests have resulted in a predicted propulsion thrust requirement of 330,000 pounds. If the vessel form has an estimated propulsion efficiency of 72 % and the line shafting incurs losses of 2 %, the required shaft horsepower to be delivered by the main engine is most nearly:

    A) 37,000 B) 35,000 C) 27,000 D) 25,000

  • Sample NAME Exam Problem No. 57, Spec. Number: III.C.2.a Subject: Propulsion and Power Generation - 4 A marine engineer is tasked to estimate the required fuel capacity for a new 24 knot vessel planned for operation between ports on the North American continent and Australia. It is expected that a round-trip voyage would cover 22,000 nautical miles with stops at eight (8) ports. The vessel is to be powered by a 45,000 SHP diesel main engine having a specific fuel consumption of 0.35 lbs. per shaft horsepower-hour. It is planned that the fuel to be used will be low-sulfur Bunker C residual, 13 degrees API gravity, bunkering in North American ports, with an estimated heating value of 18,500 BTU/Lb. The required fuel capacity (L.Tons) is most nearly: A) 7,000 B) 6,000 C) 5,000 D) 4,000 Sample NAME Exam Problem No.58, Spec. Number: III.D.1.a Subject: Machine Design 1 A set of spur gears is to transmit 35 horsepower with a pinion speed of 1750 RPM. The pitch diameter of the pinion is 6 inches and the diametral pitch is 3. The pitch diameter of the driven gear is 24 inches and its diametral pitch is 3. The contact force (pounds) at the line of contact is most nearly:

    A) 35 B) 105 C) 210 D) 420

    Sample NAME Exam Problem No.59, Spec. Number: III.D.1.b Subject: Machine Design 2 A ships propeller tail-shaft has been removed to the shipyards shop where it is to be fitted with a bronze liner. The shaft diameter is 0.254m and the liner, which is 0.0127 m thick, is to be shrink-fitted on to the shaft. The bronze material has a linear coefficient of thermal expansion of = 21.24 x 10-6 m/m degree Celsius. If the liner is bored for an internal diameter of 253.8 mm and heated to 165 degrees C. above the shops ambient temperature of 22 degrees C., so as to facilitate its fitting onto the shaft, the liners clearance (mm) during its fitting will be most nearly:

    A) 0.31 B) 0.70 C) 0.89 D) 1.07

  • Sample NAME Exam Problem No.60, Spec. Number: III.D.2.a Subject: Machine Design 3 Fretting corrosion of main propulsion line shafting caused by minute movements between mating parts may produce sites for fatigue crack initiation. Fatigue life of tailshafts subject to fretting can be greatly improved by:

    A) Case Hardening the tailshaft B) Using High Strength steel C) Cold Rolling the shaft surface D) Normalizing and Tempering the tailshaft

    Sample NAME Exam Problem No.61, Spec. Number: III.E.1.a Subject: HVAC/Refrigeration 1 Using the Psychrometric Chart below, and assuming the specific volume of dry air is approximately fourteen cubic feet per pound, the moisture content (Lbs per hour) of an air flow of 5,000 CFM when the dry bulb temperature is 75 degrees Fahrenheit and the relative humidity is 60 % is most nearly: . A) 214

    B) 235 C) 257 D) 278

  • Sample NAME Exam Problem No.62, Spec. Number: III.E.1.b Subject: HVAC/Refrigeration 2 The air conditioning system for a ships accommodation spaces delivers 4,800 cfm. If the system takes in 15% outside air at a temperature of 90 degrees F and 80% relative humidity, the additional thermal loading of the system (BTU/Hr.) in order to deliver the outside air at 68 degrees F and 50% relative humidity is most nearly. A) 20,000 B) 40,000 C) 60,000 D) 80,000 Sample NAME Exam Problem No.63, Spec. Number: III.F.1.a Subject: Electrical Loads 1 A 3-phase, 60 Hz, 440V/120V step-down transformer provides 25 KVA to a 0.8 power factor load. The transformer is connected Delta-Wye. The line current (Amps) feeding the transformer is most nearly: A) 56.8 B) 45.5 C) 32.8 D) 26.2 Sample NAME Exam Problem No.64, Spec. Number: III.F.1.b Subject: Electrical Loads 2 A ships electrical plant has a 3-phase, 4-pole, 60-hz generator producing 450-Volt power. Its name plate indicates a rating of 1200 Amperes with 0.8 lagging power factor. If its electrical efficiency is 92%, its reactive power, Q, (KVAR) is most nearly: A) 560 B) 750 C) 860 D) 935 Sample NAME Exam Problem No.65, Spec. Number: III.F.2.a Subject: Electrical Loads 3 A motorships main engine starting-air compressor is driven by a 25 horsepower 230 volt three-phase AC motor having an 87% efficiency and a 0.8 power factor under normal operating conditions. During engine maneuvering operations, when the vessel is entering and departing a port, it is expected that the compressor will have a normal on/off cycle of 15 minutes on and 10 minutes off. The Starting-Air Compressor electrical load that should be added to the load analysis for the maneuvering condition is (kW) most nearly:

  • A) 7.4

    B) 8.1 C) 9.3 D) 16.1 Sample NAME Exam Problem No.66, Spec. Number: III.F.2.b Subject: Electrical Loads 4

    The compressors of a ships refrigeration system are driven by four (4) 25 hp, 1750 rpm electric motors. The refrigeration compressors require an input torque of 66 foot-pounds at 1750 rpm under normal, at-sea operating conditions, on a 20-minute per half-hour cycle. The motor efficiency is approximately 80% at half rated load, 86% at 75% rated load and 90% at 100% rated load. The contribution to the at-sea electric power load analysis (kW) for the refrigeration system is most nearly: A) 12

    B) 22 C) 50 D) 90

    Sample NAME Exam Problem No.67, Spec. Number: III.F.2.c Subject: Electrical Loads - 5 A marine engineer is tasked to perform an electrical load analysis for a machinery system design. The machinery space ventillation system has port and starboard fans driven by 60 horsepower squirrel cage induction motors operating on 240 volt, 60 Hz, 3 phase power. During at-sea operations, the service factor is 0.85 and the motor efficiency is 91%. The contribution to the at-sea electrical load analysis (kW) is most nearly: A) 44.8 B) 49.2 C) 76.1

    D) 83.6 Sample NAME Exam Problem No.68, Spec. Number: IV.A.1.a Subject: Materials, Corrosion and Corrosion Control - 1 A Standard I-Beam section is to be used for support of a ships stores crane operating from a vessels side port. The crane lifting capacity is to be 2 L.tons, and the beam is to extend 15 feet outboard of the support located just inside the ships side, the inboard support being located 10 feet farther

  • inboard. The lightest weight Standard I-Beam section that will have a maximum shear stress not to exceed 13.6 ksi and a maximum normal stress not to exceed 20 ksi is most nearly A) S20 x 66 B) S15 x 42.9 C) S12 x 40.8 D) S10 x 25.4 Sample NAME Exam Problem No.69, Spec. Number: IV.A.1.b Subject: Materials, Corrosion and Corrosion Control - 2 The deck plating of a tank barge is selected as 12mm, with a material yield stress of 220.6

    MPa or 32 ksi. The selection of longitudinal deck plate stiffeners is decided to be on the basis that the plate buckling stress is not to exceed 85% of the materials yield stress. If Poissons Ratio for the steel is 0.30, and the Elastic Modulus (E) of the steel is 30 x 106 psi, or 206.8 GPa, the maximum spacing of the longitudinal stiffeners (mm), assuming the plate panels may be considered long, i.e., have an aspect ratio of 3.0 or greater, is most nearly:

    A) 800 B) 750 C) 700 D) 650 Sample NAME Exam Problem No. 70, Spec. Number: IV.A.1.c Subject: Materials, Corrosion and Corrosion Control - 3 An insulated aluminum LNG tank having a diameter of 35 meters is to be cooled from 75 degrees Fahrenheit above zero to 260 degrees Fahrenheit below zero while the supporting steel structure remains at ambient temperature. If the average coefficient of thermal expansion of aluminum over that temperature range is = 11 x 10-6, the relative vertical shrinkage (Inches) of the tank with respect to the support structure will be most nearly: A) 0.5 B) 2.5 C) 5.0 D) 25 Sample NAME Exam Problem No.71, Spec. Number: IV.A.2.a Subject: Materials, Corrosion and Corrosion Control - 4 Uncoated steel structure in a saltwater ballast tank has a nominal wastage of about 0.1 mm per year. The surface wastage on a vessels ballast tank spaces over a 25 year service life will weigh (kilograms per 1000 square meters) most nearly: A) 20

  • B) 200 C) 2,000 D) 20,000 Sample NAME Exam Problem No.72, Spec. Number: IV.B.2.a Solution Subject: Navigation and Vessel Control - 1 A passenger ferry steaming at sixteen knots across the eight mile wide inlet channel of a bay to its southern terminal encounters an incoming tide of 4.5 knots. If the pilot wishes to maintain a course made good of 180 degrees and the tidal current flows due west, the course (degrees true) to be steered is most nearly: A) 186 B) 180 C) 164

    D) 74 Sample NAME Exam Problem No.73, Spec. Number: IV.C.1.a Subject: Hull Outfitting 1 An oceangoing supply vessel anchor windlass is to be driven by an electric motor. The vessel has an anchor weighing 480 kg with 150 meters of 22 mm diameter anchor chain, weighing 13.5 kg per meter. It is required that the windlass be capable of weighing anchor when fully paid-out at a speed of 1 meters per second. If the friction coefficient for drawing the anchor chain through the hawse pipe is 0.25, the required power (kw) of the windlass motor is most nearly: A) 61.4 B) 53.4 C) 30.7 D) 26.7

  • Sample NAME Exam Problem No.74, Spec. Number: IV.C.1.b Subject: Hull Outfitting 2 A ship owner is interested in modifying his ships steering system by adding an auxiliary steering gear for emergency use with the ships speed at 19 knots and the rudder angle restricted to 10 degrees. Sea trial data were used to establish a rudder torque of 23.4 x 106 pound-inches when the ships speed was 19 knots and its rudder angle was 45 degrees, based on the following relationships: Rudder Force = (4.6 K A V2 Sin Sin Where KConstant A = Rudder Area (Square Feet) V = Ship Speed (Knots) = Rudder Angle (Degrees)

    and, Moment Arm = (0.195 + .305 Sin ) x Rudder Width The estimated rudder torque value (pound-inches x 106) at a ship speed of 19 knots and rudder angle of 10 degrees is most nearly:

    A) 15 B) 10 C) 6 D) 2

    Sample NAME Exam Problem No.75, Spec. Number: IV.D.1.a Subject: Weight Engineering 1

  • A shipyard is planning to fabricate sub-assembly sections consisting of a longitudinally stiffened 9/16-inch thick plate with inverted L8 x 4 x 9/16 angles welded to the plate. The stiffeners are equally spaced at 30 inches. The plate is 108 inches wide and 45 feet long. The lifting and transporting capacities (Short Tons) of the shipyard in order to transport this sub-assembly, will be most nearly:

    A) 5.0 B) 6.0 C) 7.5 D) 10.0

    Sample NAME Exam Problem No.76, Spec. Number: IV.D.1.b Subject: Weight Engineering 2

    A welded plate/shape sub-assembly is to be produced in the plate shop. The fabrication will join two 20-millimeter thick plates each having a width of 3 meters and a length of 15 meters. They will be longitudinally stiffened by 200mm x 100mm x 12mm inverted angles at 750 mm equal spacing. Upon completing the fabrication, one of the shop cranes will be used to move it to another location for further work. The minimum crane capacity (tonnes) required to safely make this move is most nearly:

    A) 15.0 B) 17.5 C) 20.0 D) 25.0

    Sample NAME Exam Problem No.77, Spec. Number: IV.E.1.a Subject: Shipbuilding and Repair 1 A shipyard Plate Shop is tasked to plan for production of longitudinally stiffened 30.6 lb. shell plates, each to be fitted with 4 - 8 x 4 x 19.6 lb inverted angles. The angles are to be 3/8 double fillet welded to the plate which is 9 feet wide and 45 feet long. A plate shop automatic welding machine, capable of double-fillet welding has a 3/16 filler rod feed rate of 15 feet per minute for each fillet weld. Neglecting set-up time, production of each stiffened plate will take (minutes) most nearly: A) 15 B) 30 C) 45

  • D) 60 Sample NAME Exam Problem No.78, Spec. Number: IV.E.1.b Subject: Shipbuilding and Repair 2 A shipyard plate shop planning production of stiffened