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U.S.C.G. Merchant Marine Exam

First Assistant Engineer

Q512 General Subjects II

(Sample Examination)

of 25 Q512 General Subjects II

8/30/2017

U.S.C.G. Merchant Marine Exam First Assistant Engineer Q512 General Subjects II Illustrations: 6

Choose the best answer to the following Multiple Choice Questions.

1. Who onboard is responsible for identifying all new crew members and insuring that the safety training and shipboard familiarization training program is implemented according to written policy and procedures?

o (A) Chief mate o (B) Designated ship's training officer o (C) Chief engineer • (D) Ship's master

If choice D is selected set score to 1.

2. An important component of pre-planning for fire emergencies is the general arrangement drawing. What type of drawing is the general arrangement drawing?

• (A) Side elevation view o (B) Top plan view o (C) Perspective view o (D) End elevation view

If choice A is selected set score to 1.

3. In order to establish a good climate for communication it is important to establish mutual trust between the employee and the manager. Which of the following facilitates the trust of employees in managers?

o (A) Disciplining fairly and consistently, showing contempt for your employee's abilities, and advocating on their behalf.

o (B) Disciplining unfairly and inconsistently, respecting your employee's abilities, and advocating on their behalf.

o (C) Disciplining fairly and consistently, respecting your employee's abilities, and requiring them to advocating on their own behalf.

• (D) Disciplining fairly and consistently, respecting your employee's abilities, and advocating on their behalf.


4. Leadership style sometimes must change with the situation faced by the manager. Which of the following situations would be best suited for adopting a structured, autocratic leadership style?

o (A) The supervision of daily operations. o (B) The supervision of a training session. • (C) The supervision of an emergency procedure. o (D) The supervision of routine maintenance.

If choice C is selected set score to 1.


8/30/2017

U.S.C.G. Merchant Marine Exam First Assistant Engineer Q512 General Subjects II Illustrations: 6 5. When one belt of a multiple V-belt drive requires replacing, what will be required?

o (A) season the new belt prior to installation o (B) ensure the proper belt dressing is applied • (C) replace the entire belt set o (D) ensure the seasoned belts are reinstalled in their proper sequence


6. The surging that occurs in a centrifugal air conditioning compressor is a result of what conditions?

o (A) low pressure in the evaporator at high load • (B) low pressure in the evaporator at low load o (C) low pressure in the condenser at high load o (D) low pressure in the condenser at low load

If choice B is selected set score to 1.

7. Vapor bubbles present in the liquid upon arrival to the thermal expansion valve in a refrigeration system may cause erosion of the expansion valve's needle and seat. This, in turn, could cause what condition?

o (A) TXV freezing open o (B) TXV overheating o (C) TXV freezing shut • (D) TXV hunting


8. A reheater in an air conditioning system performs what function?

• (A) restores the conditioned air temperature to a comfortable level o (B) controls the inlet air volume o (C) maintains the relative humidity at 15% o (D) controls the inlet air temperature


9. In accordance with 33 CFR Subchapter O (Pollution), which of the following documents would be the most useful in dealing with a vessel oil spill resulting in a discharge into navigable waters?

• (A) Shipboard oil pollution emergency plan o (B) Transfer procedures o (C) Oil record book o (D) Declaration of inspection



8/30/2017

U.S.C.G. Merchant Marine Exam First Assistant Engineer Q512 General Subjects II Illustrations: 6 10. Which of the following statements represents acceptable practice for heavy fuel oil settling tank

heating?

o (A) When filled, the heat source to the settling tank should be cut in and maintained at all times regardless of the actual temperature of the tank contents.

o (B) When filled, the heat source to a settling tank should be cut in and out often enough to maintain the ideal settling temperature and not allow the temperature to gradually fall.

o (C) When filled; no heat should be applied to the settling tank as gravity alone is sufficient to provide for proper settling as long as the fuel is not allowed to drop below the pour point temperature.

• (D) When filled, the heat source to the settling tank should be cut in until the ideal settling temperature is reached, then secured allowing the fuel to remain undisturbed for as long as possible.


11. The fluid used as a source of actuating power against the underside of the unloader power element piston of the refrigeration compressor capacity control mechanism illustrated is obtained from where? Illustration GS-RA-13

o (A) gas discharge from the compressor • (B) discharge of the compressor lube oil pump o (C) high side liquid receiver o (D) discharge of a secondary hydraulic pump specifically installed for this operation


12. Consider the following training objective for a training session designed for training your crew how to pump bilges: "Using the engine room bilge system of the M/V Underway where a bilge pocket requires pumping out and the automated bilge pumping controls have been disabled, by the end of the training session the participants will be able to pump an engine room bilge pocket dry manually to the bilge water holding tank in conformance with the vessel's engine room bilge pumping procedure checklist. There shall be no violations of the domestic and international pollution prevention regulations." What role does the phrase "in conformance with the vessel's engine room bilge pumping procedure checklist" serve in the objective statement?

o (A) It specifies a performance input condition. o (B) It states a performance by using action words. • (C) It states one of the standards of performance to be achieved. o (D) It specifies the single outcome to be achieved.



8/30/2017

U.S.C.G. Merchant Marine Exam First Assistant Engineer Q512 General Subjects II Illustrations: 6 13. What is true concerning highly contaminated refrigerant recovered from burned out small

appliances?

o (A) The recovered refrigerant may be blended with new refrigerant for eventual re-use. o (B) The recovered refrigerant must be destroyed by the refrigeration technician. o (C) The recovered refrigerant may be used to clean out systems that have suffered from a burn-

out. • (D) The recovered refrigerant should be sent to a designated reclamation facility for processing.


14. In the illustrated single zone HVAC system, what prevents the simultaneous flow of steam through the preheat coil and flow of chilled water through the cooling coil? Illustration GS-RA-09

• (A) The supply air duct thermostat controlling the steam flow is set several degrees lower than the design off-coil temperature associated with the cooling coil.

o (B) The supply air duct thermostat controlling the steam flow is set equal to the design off-coil temperature associated with the cooling coil.

o (C) Simultaneous steam flow through the preheater and chilled water flow through the cooling coil is permitted for the purposes of space humidity control.

o (D) The supply air duct thermostat controlling the steam flow is set several degrees higher than the design off-coil temperature associated with the cooling coil.


15. In consultation with the other ship's management level officers, you are planning a required fire emergency drill. In addition to selecting a scenario as functionally realistic as possible (such as a high fire risk area) what follow-up activity would best maximize the training effectiveness for future applicability to an actual fire emergency?

• (A) Debrief the entire crew after the drill to critique what went right and what went wrong. o (B) Write up a critique of the fire drill and distribute to shore side management. o (C) Document the fire drill training as required to authenticate proof of training. o (D) Hold a post-drill conference among the management officers to discuss the drill.


16. As the Chief Engineer of a motor vessel equipped with engines capable of burning both high sulfur content residual fuels and low sulfur content distillate fuels, on approaching arrival to a US port, for planning purposes, what must be done?

o (A) The fuel changeover is commenced precisely as the vessel enters the SOx emissions control area.

• (B) The fuel changeover is commenced BEFORE the vessel enters the SOx emissions control area to allow time for the high sulfur fuel to be flushed out of the fuel lines.

o (C) The fuel changeover is commenced approximately 1 nautical mile either side of the SOx emissions control area.

o (D) The fuel changeover is commenced AFTER the vessel enters the SOx emissions control area to allow time for the high sulfur fuel to be flushed out of the fuel lines.



8/30/2017

U.S.C.G. Merchant Marine Exam First Assistant Engineer Q512 General Subjects II Illustrations: 6 17. If a vessel is to be laid up for an extended period of time with minimal utilities provided where

freezing is not a concern, boilers may be laid up wet. What statement concerning wet boiler lay-up is true?

o (A) The boiler should be completely filled with ordinary fresh water (such as potable water) until water issues from the atmospheric vent.

o (B) The boiler should be filled with dearated and chemically treated water until the water level is brought to the top of the sight glass.

• (C) The boiler should be completely filled with dearated and chemically treated water until water issues from the atmospheric vent.

o (D) The boiler should be filled with ordinary water (such as potable water) until the water level is brought to the top of the sight glass.


18. An obstructed expansion valve may be indicated by an incompletely cooled evaporator and what other symptom?

• (A) frosting at the evaporator inlet o (B) frosting at the suction side of the compressor o (C) a higher than normal discharge pressure o (D) a decrease in the amount of frosting across the drier


19. As a management level engineering officer, you are apt to be the primary investigator investigating the root cause of the failure of a piece of machinery. In collecting the necessary data for the root cause analysis, what should be your FIRST priority?

o (A) Consulting with other technical experts, suppliers, and manufacturers. • (B) Collecting and preserving the physical evidence of the failure. o (C) Interviewing any directly involved watchstanding or maintenance personnel. o (D) Reviewing the historical watchkeeping and maintenance records.


20. As a chief engineer you are reviewing the engine room logbook. You must ensure that all entries are made properly. What should be your criteria for how a watch officer makes a correction to an incorrect log entry?

o (A) The incorrect entry should be completely obliterated and the new correct entry made just below the obliterated incorrect entry.

o (B) The new correct entry should be written directly on top of the old incorrect entry making every effort to cleverly disguise the incorrect entry.

o (C) The incorrect entry is to be completely erased and the new correct entry written on top of the erasure so no evidence remains of the incorrect entry.

• (D) The incorrect entry should have a thin line drawn through the error and be initialed by the person making the correction so that the incorrect entry is still visible.



8/30/2017

U.S.C.G. Merchant Marine Exam First Assistant Engineer Q512 General Subjects II Illustrations: 6 21. Concerning the arrangement of equipment and associated hoses shown in the illustration, which

statement is true? Illustration GS-RA-59

o (A) When recovering refrigerant from the centrifugal chiller using this method, the entire charge may be removed in one procedure.

• (B) When recovering refrigerant from the centrifugal chiller using this method, it is possible to achieve the recovery levels required by law without any further recovery.

o (C) When recovering refrigerant from the centrifugal chiller using this method, the containment tank should be vented back to the chiller evaporator shell.

o (D) When recovering refrigerant from the centrifugal chiller using this method, the refrigerant is being recovered as a liquid.


22. Fuel tank tables are given in volumes whereas fuel is delivered by weight in tons. How is volume change represented by beginning and ending ullages converted into weight?

o (A) By multiplying the volume by the specific gravity of the fuel. o (B) By dividing the volume by the specific gravity of the fuel. • (C) By multiplying the volume by the density of the fuel. o (D) By dividing the volume by the density of the fuel.


23. In accordance with the international MARPOL Annex VI regulations, which of the listed substances are prohibited from being burned in a shipboard incinerator?

• (A) Polychlorinated biphenyls (PCBs) o (B) Sewage waste sludges o (C) Unground garbage o (D) Oil residue sludges


24. Which of the following comprehensive computerized maintenance system database modules would contain technical data such as machinery serial numbers?

o (A) Inventory management module • (B) Equipment management module o (C) Requisitions management module o (D) Planned maintenance management module



8/30/2017

U.S.C.G. Merchant Marine Exam First Assistant Engineer Q512 General Subjects II Illustrations: 6 25. When opening or closing compressor service and line isolation valves on a typical refrigeration

system that is fitted with packed valves, what must you do?

o (A) you should replace the gasket each time the valve position is changed o (B) you should never loosen or tighten the packing gland • (C) you must first remove the stem seal cap o (D) you should turn valves slowly to avoid thermal stresses due to low temperatures


26. On a vibration analysis report, acceleration is best described as which of the following?

o (A) The distance traveled of the vibrating part. o (B) The frequency of the vibrating part. o (C) The speed of the vibrating part. • (D) The rate of change of the velocity for a vibrating part.


27. To add refrigerant to the high side of an air conditioning system, you should close the king valve and introduce the refrigerant through what valve in what state?

o (A) discharge service valve as a vapor • (B) charging valve as a liquid o (C) suction service valve as a liquid o (D) condenser purge valve as a vapor


28. During a dry-docking survey it is necessary to check the freeboard marking of a vessel. Which of the following certificates addresses vessel freeboard markings?

o (A) Tonnage Certificate o (B) International Oil Pollution Prevention Certificate • (C) International Load Line Certificate o (D) MARPOL Certificate


29. During the Special Survey the propeller is removed and shaft pulled into the vessel. Which of the following tests must be performed on the propeller shaft prior to refitting?

• (A) The tapered section must be checked for cracks using non-destructive testing. o (B) The entire shaft must be checked for cracks using non-destructive testing. o (C) The propeller flange must be checked for cracks using non-destructive testing. o (D) The shaft weight must be checked prior to refitting.



8/30/2017

U.S.C.G. Merchant Marine Exam First Assistant Engineer Q512 General Subjects II Illustrations: 6 30. In preparation for conducting a mariner assessment, an assessor must ascertain whether or not a

candidate meets the assessment prerequisites. Which of the following indicates the prerequisite criteria that should be checked?

o (A) Check whether the candidate meets prerequisite training, experience and successful completion of related assessments only. Credentials held are not required to be checked.

• (B) Check whether the candidate meets prerequisite training, experience, credential, and successful completion of related assessments. All must be checked.

o (C) Check whether the candidate meets prerequisite training and successful completion of related assessments only. Experience and credentials are not required to be checked.

o (D) Check whether the candidate meets prerequisite successful completion of related assessments only. Training, experience, and credentials held are not required to be checked.


31. When preparing/writing shipyard items for your vessel's upcoming drydocking period, what would you consider as an item regarding CuNi salt water cooling systems/piping?

• (A) Identify in your item all steel waster piece pipe spools in the CuNi systems and require them to be removed and replaced.

o (B) This item should be of no concern since you have not experienced system piping degradation/leaks.

o (C) Remove certain designated CuNi piping sections for inspection. o (D) Replace all bonding pieces/wires between all CuNi system flanges.


32. Engineering departments may experience a barrier to free and open communication vertically upward from subordinates to managers. What is the primary reason for this barrier to communication?

o (A) The very fact that managers are more technically proficient than their subordinates often creates a barrier to open and free communication vertically upward.

o (B) The very fact that managers are usually older than their subordinates often creates a barrier to open and free communication vertically upward.

o (C) The very fact that managers are more knowledgeable than their subordinates often creates a barrier to open and free communication vertically upward.

• (D) The very fact that managers have authority, status and power over their subordinates often creates a barrier to open and free communication vertically upward.



8/30/2017

U.S.C.G. Merchant Marine Exam First Assistant Engineer Q512 General Subjects II Illustrations: 6 33. For newly constructed vessels, extensive shipyard repair or a vessel's modification period, what

does a shipyard's 'Gantt' chart represent?

o (A) Daily actual shipyard progress, per item, vs. estimated. o (B) Project's shipyard fiscal and man hours expenditures per item/goal. o (C) Daily shipyard's production figures and progress. • (D) Master schedule of time/man hours vs. project's significant goals/items for the duration of the

project.


34. Which of the following comprehensive computerized maintenance system database modules would contain data such as work and safety procedures?

o (A) Equipment management module o (B) Requisitions management module • (C) Planned maintenance management module o (D) Inventory management module


35. Which of the installation steps listed is necessary for the proper operation of the thermostatic expansion valve?

o (A) Remove excess lengths of the sensing bulb capillary tube from the device to increase sensitivity.

o (B) Attach the thermal bulb to the suction line using plastic ties. • (C) Clean off oxidation from the surface of the suction line and sensing bulb with fine abrasive

cloth or steel wool. o (D) Heat shrink insulating material around the device once the bulb has been properly secured.


36. What statement is true concerning the use of a thermal imager for the purposes of conducting a thermographic analysis of equipment?

• (A) The imager detects heat patterns in the infrared spectrum without making direct contact with the equipment being evaluated.

o (B) The imager detects heat patterns in the infrared spectrum requiring direct contact with the equipment being evaluated.

o (C) The imager detects heat patterns in the ultraviolet spectrum without making direct contact with the equipment being evaluated.

o (D) The imager detects heat patterns in the ultraviolet spectrum without making direct contact with the equipment being evaluated.



8/30/2017

U.S.C.G. Merchant Marine Exam First Assistant Engineer Q512 General Subjects II Illustrations: 6 37. According to the EPA Clean Air Act rules, what is true concerning refrigerant leaks in a small

hermetically sealed shipboard water cooler with a 20 ounce charge weight?

• (A) Legally, the leaks are not required to be repaired, but morally it is advisable to repair the leaks.

o (B) The leaks must be repaired if the annual leak rate exceeds 15% of the total charge o (C) The leaks must be repaired within 30 days. o (D) The leaks must be repaired if the annual leak rate exceeds 35% of the total charge.


38. Suppose a water-lubricated stern tube bearing is being evaluated for wear where the propulsion machinery is located amidships. If the tailshaft diameter is 10.5 inches, according to 46 CFR regulations pertaining to periodic tests and inspections as related to machinery and equipment, what would be the maximum clearance diameter permissible before the bearing must be re-bushed?

o (A) 0.125 inches o (B) 0.25 inches • (C) 0.3125 inches o (D) 0.375 inches


39. Minor repairs may be performed on low-pressure refrigerant systems without recovering the refrigerant charge if the pressure in the system is raised to atmospheric. How may this be accomplished?

o (A) pressurize the system with nitrogen o (B) open the system vent to the atmosphere and allow the pressure to equalize o (C) charge the system until it is completely filled with liquid refrigerant • (D) heat the refrigerant


40. Suppose a water-lubricated stern tube bearing is being evaluated for wear where the propulsion machinery is located aft. If the tail shaft diameter is 13.5 inches, according to 46 CFR regulations pertaining to periodic tests and inspections as related to machinery and equipment, what would be the maximum clearance diameter permissible before the bearing must be re-bushed?

o (A) 0.125 inches o (B) 0.25 inches • (C) 0.3125 inches o (D) 0.375 inches



8/30/2017

U.S.C.G. Merchant Marine Exam First Assistant Engineer Q512 General Subjects II Illustrations: 6 41. What is usually the first step in trying to resolve a beef or a dispute brought up by a crew member?

o (A) Filing a formal grievance with a company and union agreed-upon arbitrator for binding arbitration.

o (B) Filing a formal grievance with the union's designated representative on board before terminating articles.

• (C) Attempting to resolve the conflict by the crew member and the affected supervisor as immediately as practical.

o (D) Filling a formal grievance with the port committee made up of both company and union representatives in port before terminating articles.


42. If the initial report or automatic fire detection equipment are insufficient to provide adequate information to properly size-up a fire, an exploratory survey team consisting of at least two people may be required for reconnaissance purposes. How should the survey team members be equipped?

o (A) At least one team member should be wearing full protective gear and at least one other team member should be wearing a smoke filtering gas mask.

o (B) At least one team member should be wearing full protective gear and at least one other team member should be wearing a self-contained breathing apparatus.

o (C) Each survey team member should be wearing full protective gear and a smoke filtering gas mask.

• (D) Each survey team member should be wearing full protective gear and a self-contained breathing apparatus.


43. During a yard period when a tailshaft survey is being performed and where the propeller shaft has been withdrawn, when is a surveyor attendance required?

o (A) It is normally required that stern tube bearing assembly be attended by a surveyor. • (B) It is normally required that the shaft alignment be carried out in the presence of a surveyor. o (C) It is normally required that all shafting measurements be carried out in the presence of a

surveyor. o (D) It is normally required epoxy casting be witnessed by a surveyor.


44. Which of the following conflict resolution techniques represents a strategy where everyone wins?

o (A) Struggle and victory of one side over the other. o (B) Voluntary submission of one side. • (C) Joint problem solving by both sides. o (D) Compromise by both sides.



8/30/2017

U.S.C.G. Merchant Marine Exam First Assistant Engineer Q512 General Subjects II Illustrations: 6 45. Unusual noise coming from a refrigeration compressor can be caused by which of the following

conditions?

o (A) worn bearings and piston pins o (B) too much oil in circulation o (C) slugging due to flooding back • (D) all of the above


46. If a vessel is to be laid up for an extended period of time with minimal utilities provided from ashore, what statement is true as it relates to keeping electric motor windings dry and free from moisture?

o (A) Motors should be hermetically sealed to prevent the ingress of moisture. o (B) Motors should be infused with desiccant powder. • (C) Motors should be kept warm with infrared heat lamps. o (D) Motors should be sprayed down with a moisture-displacing solvent.


47. If it is necessary to increase the operating head pressure of the refrigeration system using the device shown in the illustration, what should be done? Illustration GS-RA-14

• (A) "2" should be turned to further compress the spring o (B) "2" should be turned to relax the compression of the spring o (C) "4" should be rotated to compress the enclosed bellows o (D) "4" should be rotated to relax the enclosed bellows


48. Which statement about calibrating a newly installed thermostatic expansion valve is correct?

o (A) This procedure is done at the factory with tools not available to a mariner. o (B) No special tools are required as long as the solid state circuit control panels are functioning

properly. o (C) The procedure requires a refrigeration wrench and a digital thermometer to measure box

temperature. • (D) An accurate thermometer and suction pressure gage are essential to this process.



8/30/2017

U.S.C.G. Merchant Marine Exam First Assistant Engineer Q512 General Subjects II Illustrations: 6 49. The rupture disc on a low-pressure centrifugal refrigeration unit is used as an overpressure

protection device and is set to relieve at 15 psig and is most likely to lift when the compressor is idle. Where is the rupture disc located?

o (A) on top of the condenser shell o (B) at the top of the upper chamber of the economizer o (C) at the discharge of the compressor • (D) on top of chiller evaporator shell


50. It has been demonstrated that delegation can enhance employee development. To avoid a fear of failure, what must a manager avoid when delegating decision-making power to an employee?

o (A) Under-estimating the job maturity level of their employees and assigning tasks that are too easy.

o (B) Over-estimating the job maturity level of their employees and assigning tasks that are too easy.

• (C) Over-estimating the job maturity level of their employees and assigning tasks that are too difficult.

o (D) Under-estimating the job maturity level of their employees and assigning tasks that are too difficult.


51. Referring to the illustrated psychrometric chart, if the dry bulb temperature is 70oF and the relative humidity is 40%, what is the absolute humidity? Illustration GS-RA-22

o (A) 38 grains of moisture per pound of dry air • (B) 45 grains of moisture per pound of dry air o (C) 51 grains of moisture per pound of dry air o (D) 58 grains of moisture per pound of dry air


52. When a refrigeration system is being topped off with a small amount of refrigerant through the low side with the compressor running, what should be done?

o (A) the discharge service valve must be front seated o (B) the refrigerant charging cylinder should be turned upside down • (C) the refrigerant should be charged into the system as a vapor o (D) the suction service valve must be back seated



8/30/2017

U.S.C.G. Merchant Marine Exam First Assistant Engineer Q512 General Subjects II Illustrations: 6 53. Which of the following analytical tools can be used for trend analysis?

I) Lube oil analysis II) Vibration analysis III) Performance data analysis IV) Thermographic analysis

o (A) I and II only. o (B) III only. o (C) I, II, and III only. • (D) I, II, III, and IV


54. What is the critical first step that must be carried out before executing a plan?

• (A) Setting an objective or goal to be achieved by the plan. o (B) Assessing present and future conditions affecting achievement of the plan. o (C) Identifying present and future conditions affecting achievement of the plan. o (D) Developing a systematic approach to achievement of the plan.


55. Which of the valves listed is normally closed when charging the refrigeration system through the high side?

o (A) Dehydrator inlet valve o (B) Thermal expansion valve • (C) Liquid line king valve o (D) Suction line valve


56. You are installing a new refrigeration system aboard your vessel. The system comes with a 240 psi rupture disk, a safety valve set at 240 psi and a pressure gauge connection and gauge. According to the federal code of regulations, what is the preferred setup for installing the equipment on the condenser?

o (A) Rupture disk closest to the condenser, then pressure gauge then safety valve in series after the rupture disk.

o (B) The rupture disk, safety valve, and pressure gauge are all piped in parallel. o (C) Pressure gauge closest to the condenser, then safety valve then rupture disk in series after

the pressure gauge. • (D) Safety valve closest to the condenser, then pressure gage then rupture disk in series after the

safety valve.



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U.S.C.G. Merchant Marine Exam First Assistant Engineer Q512 General Subjects II Illustrations: 6 57. Fire and emergency training has three major components: knowledge sessions, skills sessions, and

drills. What is the essential difference between skills sessions and drills if applicable?

o (A) Skills sessions and drills both provide crew members an opportunity to engage in a practical exercise in a realistic setting.

• (B) Skills sessions provide crew members an opportunity to practice skills in a convenient training location, whereas drills provide crew members an opportunity to engage in a practical exercise in a realistic setting.

o (C) Skills sessions and drills both provide crew members an opportunity to practice skills in a convenient training location.

o (D) Skills sessions provide crew members an opportunity to engage in a practical exercise in a realistic setting, whereas drills provide crew members an opportunity to practice skills in a convenient training location.


58. What type of maintenance system would be associated with a vibration monitoring analysis system?

o (A) Planned maintenance system • (B) Predictive maintenance system o (C) Corrective maintenance system o (D) Scheduled maintenance system


59. While a vessel is underway in periodically unmanned engine room status, the oily-water separator is undergoing extensive maintenance and repairs and will not be available for service for another 24 hours. With bilge holding tanks nearing capacity, as chief engineer you wish to be informed of when the oily-water separator is available for service. How would you best ensure that you will be so informed?

o (A) The request would be written as a note posted in the vicinity of the engineering department coffee mess.

• (B) The request would be written as a special instruction in the chief engineer's night order book. o (C) The request would be written as a note inserted into the chief engineer's standing order book. o (D) The request would be made of the duty engineer orally assuming that the word shall be

passed on to his or her relief.


60. If the running suction pressure at the refrigeration compressor of a TXV controlled air-cooled refrigeration system is below normal, which of the following can be a cause?

o (A) overfeeding by the expansion valve o (B) a dirty condenser o (C) refrigerant overcharge • (D) a restricted liquid-line strainer



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U.S.C.G. Merchant Marine Exam First Assistant Engineer Q512 General Subjects II Illustrations: 6 61. Overhaul of a ship at a shipyard represents an example of a large-scale project executed under

contract. What characteristics best describe the terms of the project deliverables?

o (A) The shipyard repairs contract is time-limited with specific start and end dates, is cost-defined, and is very general in terms of repairs contracted for.

• (B) The shipyard repairs contract is time-limited with specific start and end dates, is cost-defined, and is very specific in terms of repairs contracted for.

o (C) The shipyard repairs contract is time-limited with specific start and end dates, is of undetermined cost, and is very specific in terms of repairs contracted for.

o (D) The shipyard repairs contract is open-ended in terms of time, is cost-defined, and is very specific in terms of repairs contracted for.


62. For safe storage, the maximum allowable temperature to which refrigerant bottles should be exposed is what temperature?

o (A) 100°F • (B) 125°F o (C) 150°F o (D) 175°F


63. Which of the following shipboard groups would be an example of an informal group?

• (A) Those officers and crew assigned to a maintenance task on a ship. o (B) Those officers and crew assigned to the safety committee of a ship. o (C) Those officers and crew assigned to a particular ship. o (D) Those officers and crew assigned to the engineering department of a ship.


64. In an air conditioning system, what is the name of the chamber where the duct-work originates?

• (A) plenum chamber o (B) vapor chamber o (C) exhaust chamber o (D) intake chamber



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U.S.C.G. Merchant Marine Exam First Assistant Engineer Q512 General Subjects II Illustrations: 6 65. Expansion tanks when used in a ship's low temperature hot water heating system may be of the

open or closed type. Referring to the illustrated central-station hookup for a hot water heating system drawing, what would be the normal temperature range of the water? Illustration GS-0151

• (A) 180oF to 200oF o (B) 220oF to 240oF o (C) 260oF to 280oF o (D) 320oF to 360oF


66. You are conducting an operational test of your main steering gear system. The main steering gear must be capable of moving the rudder from 35 degrees on either side to 35 degrees on the other with the vessel at its deepest load line draft and running at maximum ahead service speed, and from 35 degrees on either side to 30 degrees on the other in what minimum time frame?

• (A) 28 seconds o (B) 45 seconds o (C) 1 minute o (D) 2 minutes


67. A containership is scheduled to depart the Port of Houston, TX at 0600 on April 7th on a voyage to exceed 48 hours. What is the EARLIEST time that the steering gear could be tested prior to getting underway and be in compliance 46 CFR Subchapter I (Cargo and Miscellaneous Vessels)?

o (A) 0600 April 6th o (B) 1200 April 6th • (C) 1800 April 6th o (D) 0000 April 7th


68. As a management level engineering officer planning for the departure of a vessel, what would be the preferred document to use to make sure that you did not miss any important steps?

• (A) Vessel-specific pre-departure check off list. o (B) Various machinery technical manuals. o (C) Shipping company policy manual. o (D) International safety management code.



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U.S.C.G. Merchant Marine Exam First Assistant Engineer Q512 General Subjects II Illustrations: 6 69. Alkyl benzene ISO 32 cSt synthetic refrigerant oil is miscible and suitable to use with which of the

following refrigerants?

• (A) R-22 o (B) R-32 o (C) R-134a o (D) R-143a


70. As a senior engineer involved in new vessel construction, what would you consider to be the final proof of proper shaft alignment?

• (A) Confirm shaft bearing reaction figures/loads, as designed per bearing. o (B) On a steam turbine vessel, rely on reduction gear tooth contact solely. o (C) Rely on optical or laser alignment figures/readings solely. o (D) On a motor vessel, rely on crankshaft deflections solely.



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5/17/2016

GS-0151

Notes

1. Mount convector on exposed (cold) bulkhead or bulkhead lining with 0.5” air space.

2. Clean-out plates should be 24” x 24” if possible.

3. Provide 24” x 24” hinged panel in joiner ceiling. Locate for easy access to air vent, valves, and clean-out.

4. The convector hook-up also applies to fin pipe elements.

5. Locate the shut-off valve for down-feed convectors approximately 6’ above the deck.

6. The air vent must be operable through a side or discharge grille.

Adapted for testing purposes only from HARRINGTON, Marine Engineering

Copyright © 1992 by The Society of Naval Architects and Marine Engineers

Further reproduction prohibited without permission of 25 Q512 General Subjects II

National Maritime Center

Providing Credentials to Mariners

3/13/2017

GS-RA-09

Adapted for testing purposes only from HARRINGTON, Marine Engineering

Copyright © 1992 by The Society of Naval Architects and Marine Engineers

Further reproduction prohibited without permission


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