u.s.c.g. merchant marine exam master or mate less than 200 ...€¦ · 8/30/2019 · o (b) just...

National Maritime Center Serving Our Nation’s Mariners

U.S.C.G. Merchant Marine Exam

Master or Mate Less than 200 Gross Registered Tons

Q151-Deck Safety

(Sample Examination)

of 12 Q151-Deck Safety

8/11/2020

Q151-Deck Safety U.S.C.G. Merchant Marine Exam Master or Mate Less than 200 Gross Registered Tons Illustrations: 1

Choose the best answer to the following Multiple Choice Questions.

1. The Master of a cargo or tank vessel shall be responsible that each lifeboat, except those free-fall launched, is lowered to the water with crew and maneuvered. Which time interval is this action required?

o (A) Once a week o (B) Once a month • (C) Once every three months o (D) Once a year

If choice C is selected set score to 1.

2. The color of the signal flares sent up by a submarine surfacing from periscope depth is __________.

• (A) white o (B) yellow o (C) green o (D) red

If choice A is selected set score to 1.

3. What condition will result in the automatic shutdown of a diesel engine?

• (A) Low lube oil pressure o (B) Excessive turbo charger speed o (C) High lube oil pressure o (D) High jacket water pressure


4. How should a message warning of a tropical storm be sent?

o (A) Routine message o (B) Distress message • (C) Safety message o (D) Urgent message


5. Which statement is TRUE concerning lifeboat gripes?

o (A) They are normally used only with radial davits. o (B) They should not be released until the boat is in lowering position. o (C) They must be released by freeing a safety shackle. • (D) They may be adjusted by a turnbuckle.

If choice D is selected set score to 1.


8/11/2020

Q151-Deck Safety U.S.C.G. Merchant Marine Exam Master or Mate Less than 200 Gross Registered Tons Illustrations: 1 6. Which term describes the time required to incline the vessel from port to starboard and back to port

again?

o (A) Inclining moment o (B) Range of stability • (C) Rolling period o (D) Initial stability


7. In a fixed CO2 fire extinguishing system where pressure from pilot cylinders is used to release the CO2 from the main bank of 20 cylinders, what is the minimum number of required pilot cylinders?

• (A) 2 o (B) 3 o (C) 4 o (D) 6


8. When transferring survivors from an enclosed lifeboat to a rescue vessel, personnel on board the boat should take which action?

o (A) Climb on top of the boat while waiting for their turn to transfer to the rescue vessel o (B) Remove their life preservers to make it easier to climb on board the rescue vessel • (C) Remain seated inside and make the transfer one person at a time o (D) Enter the water and swim over to the rescue vessel


9. In illustration D001SA below, what represents the metacentric height?

o (A) BM o (B) M • (C) GM o (D) GZ


10. What is the best indication of the loading of a diesel engine?

o (A) Manifold pressure o (B) Oil temperature • (C) Exhaust gas temperature o (D) Fuel consumption



8/11/2020

Q151-Deck Safety U.S.C.G. Merchant Marine Exam Master or Mate Less than 200 Gross Registered Tons Illustrations: 1 11. Which term defines the vertical structural members attached to the floors that add strength to the

floors?

o (A) Breast hooks o (B) Boss plates o (C) Buckler plates • (D) Stiffeners


12. The volatility of a flammable liquid is indicated by its __________.

o (A) conversion index o (B) flammable range • (C) flash point o (D) ignition temperature


13. If you are forced to abandon ship in a liferaft, what would be your course of action?

o (A) Head for the nearest land o (B) Head for the closest sea-lanes o (C) Let the persons in the boat vote on what to do • (D) Remain in the immediate vicinity


14. Before counterflooding to correct a list, you must be sure the list is due to which of the following choices?

• (A) Off-center weight o (B) A negative GM o (C) Reserve buoyancy o (D) Flooding


15. After receiving your distress call, the U.S.C.G. may ask you to switch to which SSB frequency?

o (A) 2570 • (B) 2670 o (C) 2770 o (D) 2870

If choice B is selected set score to 1.


8/11/2020

Q151-Deck Safety U.S.C.G. Merchant Marine Exam Master or Mate Less than 200 Gross Registered Tons Illustrations: 1 16. What could result in an incorrect oxygen concentration reading on the oxygen indicator?

o (A) Exposure to carbon dioxide for no more than 1 minute • (B) Exposure to carbon dioxide for more than 10 minutes o (C) Exposure to a very low concentration of sulfur dioxide for no more than 2 minutes o (D) None of the above


17. All lifeboats, rescue boats, and rigid-type liferafts shall be stripped, cleaned, and thoroughly overhauled at which time interval?

o (A) 6 months • (B) Yearly o (C) 18 months o (D) Every two years


18. What is the required minimum length of the painter for a lifeboat in ocean service?

• (A) two times the distance from the boat deck to the light waterline or 50 feet whichever is greater o (B) 60 fathoms o (C) the distance from the main deck to the light waterline o (D) twice the distance from the main deck to the light waterline or 50 feet whichever is greater


19. Foam is a very effective smothering agent and __________.

o (A) works well on extinguishing electrical fires • (B) it provides cooling as a secondary effect o (C) can be used to combat combustible metal fires o (D) All of the above


20. When using a hand held smoke signal aboard a survival craft, how should you activate the signal?

o (A) At the stern of the craft • (B) On the downwind side of the craft o (C) On the upwind side of the craft o (D) Inside the craft



8/11/2020

Q151-Deck Safety U.S.C.G. Merchant Marine Exam Master or Mate Less than 200 Gross Registered Tons Illustrations: 1 21. What is the most important reason for taking anti-seasickness pills as soon as possible after entering

a liferaft?

o (A) Prevents impaired judgment due to motion-induced deliriousness o (B) To assist in sleeping o (C) Reduces appetite by decreasing nausea • (D) Prevents loss of body moisture due to vomiting


22. Horizontal transverse motion of a vessel is known by which term?

o (A) Pitch o (B) Heave o (C) Surge • (D) Sway


23. In order to discharge a CO2 portable fire extinguisher, the operator must FIRST take which action?

• (A) Remove the locking pin o (B) Open the discharge valve o (C) Invert the CO2 extinguisher o (D) Squeeze the two trigger handles together


24. Aboard a vessel, a common formula which consists of dividing the sum of the vertical moments by the total weight yields which information?

o (A) The inclining moments o (B) The righting moments • (C) The height of the center of gravity o (D) The vessel's vertical moments


25. Upon completion of fueling a gasoline driven vessel it is necessary to perform which task?

o (A) Start the engines immediately o (B) Keep ports, doors, windows, and hatches closed • (C) Ventilate before starting engine o (D) None of the above



8/11/2020

Q151-Deck Safety U.S.C.G. Merchant Marine Exam Master or Mate Less than 200 Gross Registered Tons Illustrations: 1 26. "Limber" is a term associated with which item?

o (A) Deck cargo storage • (B) Drainage o (C) Securing gear o (D) Emergency gear


27. When fighting fires in spaces containing bottles of LPG (liquefied petroleum gas), which is the most prudent action to take?

o (A) See that the valves on all LPG bottles are closed o (B) Place insulating material over the bottles o (C) Attempt to isolate the fire from the LPG • (D) Cool the bottles or remove them from the fire area


28. Portable-foam fire extinguishers are designed for use on what classes of fires?

o (A) A and C o (B) B and C • (C) A and B o (D) A, B, and C


29. You have just abandoned ship and boarded a raft. After the raft is completely inflated you hear a whistling noise coming from a safety valve. Which action should you take?

o (A) Plug the safety valve • (B) Do not become alarmed unless it continues for a long period of time o (C) Unscrew the deflation plugs o (D) Remove the safety valve and replace it with a soft patch


30. What must be accurately determined to assess the potential for progressive flooding after a vessel has been damaged?

• (A) The integrity of the water tight boundaries o (B) The operation of the machinery space bilge level alarms o (C) The capacity of the water sprinkler systems o (D) All of the above



8/11/2020

Q151-Deck Safety U.S.C.G. Merchant Marine Exam Master or Mate Less than 200 Gross Registered Tons Illustrations: 1 31. What power source actuates a solenoid valve?

• (A) Electric current o (B) Mechanical force o (C) Hydraulic pressure o (D) Air pressure


32. Channel 13 is primarily used for ship to ship communication. Channel 13 is also authorized for which purpose?

o (A) Aircraft to ship operational communications o (B) Aircraft to ship navigational communications • (C) Lock & bridge communications o (D) Coast to aircraft operational communications


33. When shoring a damaged bulkhead, effort should be taken to spread the pressure over the __________.

o (A) minimum possible area • (B) maximum possible area o (C) nearest watertight door o (D) nearest longitudinal girder


34. If you see an individual fall overboard, which action(s) should you take?

o (A) Hail "man overboard" o (B) Throw him/her a life buoy o (C) Pass the word to the bridge • (D) All of the above


35. Which statement is TRUE concerning a fire in a machinery space?

o (A) The space should be opened 5 minutes after flooding CO2 to prevent injury to personnel o (B) The fixed carbon dioxide system should be used immediately, as it is the most efficient means

of extinguishment o (C) Water in any form should not be used as it will spread the fire • (D) The fixed carbon dioxide system should be used only when all other means of extinguishment

have failed



8/11/2020

Q151-Deck Safety U.S.C.G. Merchant Marine Exam Master or Mate Less than 200 Gross Registered Tons Illustrations: 1 36. Ventilation systems connected to a compartment in which a fire is burning are normally closed to

prevent the rapid spread of the fire by which method?

o (A) Spontaneous combustion • (B) Convection o (C) Conduction o (D) Radiation


37. If you are unable to stop a diesel engine by any other means, which action can you take?

o (A) Pull off the distributor cap • (B) Discharge a CO2 extinguisher in the air inlet o (C) Secure the jacket water o (D) Secure the starting air supply valve


38. Which statement is TRUE concerning gasoline vapors on board a vessel?

o (A) They are lighter than air and will settle in the highest part of the vessel. o (B) They should be vented into the wheelhouse. o (C) They should be vented into the engine to improve combustion. • (D) They are heavier than air and will settle in the lowest part of the vessel.


39. What is a butt welded joint's strength compared to the base metal?

o (A) 48% o (B) 90% • (C) 100% o (D) 121%


40. How does good housekeeping prevent fires on a vessel?

o (A) Allowing better access in an emergency o (B) Improving personnel qualifications o (C) Eliminating trip hazards • (D) Eliminating potential fuel sources



8/11/2020

Q151-Deck Safety U.S.C.G. Merchant Marine Exam Master or Mate Less than 200 Gross Registered Tons Illustrations: 1 41. Foam is effective in combating which class(es) of fire?

o (A) A • (B) B o (C) C o (D) D


42. What precaution should be taken when testing a line throwing gun?

• (A) Never remove the line from the rocket. o (B) Wear asbestos gloves. o (C) Fire it at an angle of approximately 90 degrees to the horizon. o (D) Always fire the rocket into the wind


43. The greatest effect on stability occurs from loose liquids flowing __________.

• (A) in and out of a vessel that is holed in a wing tank o (B) in and out of a vessel that is holed in a peak tank o (C) from fore to aft in the tanks of a vessel o (D) from side to side in the tanks of the vessel


44. The carburetor is placed on the engine to __________.

o (A) distribute the gasoline o (B) properly lubricate the engine o (C) assist in priming the cylinders • (D) mix the fuel and air


45. Which statement is TRUE concerning fuel vapors on a vessel?

o (A) Fuel vapors can only be ignited by an open flame. o (B) Vent outlets should be located above the level of the carburetor air intake. • (C) Fuel vapors gather in the lowest portions of the vessel. o (D) None of the above



8/11/2020

Q151-Deck Safety U.S.C.G. Merchant Marine Exam Master or Mate Less than 200 Gross Registered Tons Illustrations: 1 46. If a vessel takes a sudden, severe list or trim from an unknown cause, which action should you take

FIRST?

o (A) Assume the shift is due to off-center loading o (B) Counter flood o (C) Assume the cause is environmental forces • (D) Determine the cause before taking countermeasures


47. You are fighting a fire in a cargo hold on your vessel. Which action is most important concerning the stability of the vessel?

o (A) Removing burned debris from the cargo hold • (B) Draining fire-fighting water and pumping it overboard o (C) Maneuvering the vessel so the fire is on the lee side o (D) Shutting off electricity to damaged cables


48. When should the external inflation bladder on an immersion suit be inflated?

o (A) After you notice that your suit is losing buoyancy o (B) Before you enter the water • (C) After you enter the water o (D) After one hour in the water


49. What is the purpose of a striker plate?

o (A) Prevents valve stem over-travel o (B) Absorbs machinery vibration • (C) Provides landing surface for the sounding bob o (D) Provides surface for applying force on machinery


50. Normally, potable water systems are connected directly to the __________.

o (A) freshwater sanitary system o (B) feed-water system o (C) fire-main system • (D) potable water tank



8/11/2020

National Maritime Center

Serving Our Nation’s Mariners

11/6/2018

Adapted for testing purposes only

Further reproduction prohibited without permission

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u.s.c.g. merchant marine exam master or mate less than 200 ...€¦ · 8/30/2019 · o (b) just...

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