National Maritime Center

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1 National Maritime Center Providing Credentials to Mariners (Sample Examination) Page 1 of 13

2 Choose the best answer to the following Multiple Choice Questions. 1. Which causes spontaneous combustion? (A) A chemical action within a substance o (B) The conduction of heat through a wall of material to the substance o (C) An outside heat source heating a substance until it ignites o (D) All of the above 2. Why is spare fire hose rolled for storage? o (A) Rolling provides maximum protection against entry of foreign objects into the couplings. (B) The threads on the male end are protected by the hose. o (C) Rolling provides maximum protection to the outer covering of the hose. o (D) Water in the hose is forced out the end in the rolling process. 3. Aboard a survival craft, ether can be used to. o (A) prime the air supply (B) start the engine in cold weather o (C) prime the sprinkler system o (D) aid in helping personnel breathe 4. The spray of water produced by using the high-velocity fog position on an all-purpose nozzle will have. (A) greater range than low-velocity fog o (B) lesser range than low-velocity fog o (C) about the same range as low-velocity fog o (D) greater range than a solid stream 5. A SAR helicopter has landed a litter on deck to medivac a patient from your vessel. After ensuring that it has been grounded, what precautionary action should you take prior to loading the patient into the litter? (A) Unhook the litter from the winch cable while the patient is being loaded o (B) Secure the winch cable to the deck so it is not a trip hazard o (C) Verify the litter is securely hooked to the winch cable before the patient is loaded o (D) Secure the litter firmly to the deck to prevent any unneccessary movement Page 2 of 13

3 6. All inflatable liferafts have. o (A) releasing hooks at each end (B) water stabilizing pockets o (C) built in seats o (D) safety straps from the overhead 7. Many vessels are provided with flume tanks, which also have a dump tank located under the flume tanks. In the event the ship is damaged, you could dump the flume tanks into the dump tank which would. o (A) reduce the free surface effect and raise the KG o (B) not have any effect on free surface and lower the KG o (C) not have any effect on free surface and raise the KG (D) reduce the free surface effect and lower the KG 8. The governor brake on a lifeboat winch shall be capable of controlling the speed of lowering a fully equipped lifeboat from a cargo ship at. o (A) not more than 90 feet per minute o (B) a safe speed only specified (C) not more than 120 feet per minute o (D) not less than 120 feet per minute 9. The brickwork surrounding the firebox of a boiler is known as. o (A) fire plate (B) refractory o (C) the screen wall o (D) the waterwall 10. Fires are grouped into what categories? (A) Class A, B, C, and D o (B) Flammable solids, liquids, and gases o (C) Combustible solids, liquids, and gases o (D) Type 1, 2, 3, and 4 Page 3 of 13

4 11. Lifesaving regulations in Subchapter W require that a fire drill include which of the following? o (A) Starting the fire pumps o (B) Checking arrangements for abandon ship o (C) Checking the operation of watertight doors (D) All of the above 12. Which visual distress signal is acceptable for daylight use only? o (A) Red aerial pyrotechnic flare (B) Hand-held orange smoke distress flare o (C) Hand-held red flare o (D) Self-contained rocket-propelled parachute red flare 13. The officer responsible for the sanitary condition of the engineering department is the. o (A) Master o (B) First Assistant o (C) Chief Mate (D) Chief Engineer 14. The tops of the thwarts, side benches, and the footings of a lifeboat are painted which color? o (A) Yellow o (B) White (C) International orange o (D) Red 15. Which term defines the minimum concentration of a vapor in air which can form a mixture that ignites and burns? (A) lower flammable limit (LFL) o (B) Flash point o (C) Threshold limit value (TLV) o (D) Auto-ignition point Page 4 of 13

5 16. In illustration D033DG below, what is the strake of shell plating indicated by letter H known as? o (A) bilge strake o (B) sheer strake o (C) outboard keel plate (D) garboard strake 17. Which of the following defines the difference between the free floating displacement and the KB of a grounded vessel? o (A) Reserve buoyancy o (B) Inclining moment o (C) Transverse stability (D) Grounding force 18. Horizontal fore or aft motion of a vessel is known as. o (A) pitch o (B) roll o (C) sway (D) surge 19. How should the letter "W" be pronounced when spoken on the radiotelephone? o (A) DUB A U o (B) WI NE (C) WISS KEY o (D) WOO LF 20. The pillar shape that gives the greatest strength for the least weight is the. o (A) "H" Beam pillar o (B) octagonal pillar o (C) "I" Beam pillar (D) circular type pillar Page 5 of 13

6 21. What should you do, following the launching of the survival craft, in an abandon ship scenario? o (A) Take a vote on the direction in which to go o (B) Go in one direction until fuel runs out o (C) Plot a course for the nearest land (D) Stay in the immediate area 22. Before you start an engine in a compartment, it's MOST important to. (A) ventilate the bilges o (B) check the flame arrester o (C) check the battery o (D) check the fuel tank 23. What is the BEST conductor of electricity? (A) Salt water o (B) Distilled water o (C) Fresh water o (D) Carbon dioxide 24. How are automatic fire dampers in ventilation systems operated? o (A) Heat or smoke detectors activate the dampers o (B) By the use of CO2 system pressure switches o (C) Remotely operated valves to control the damper (D) Fusible links that melt and release the damper 25. Your vessel has just run aground. Which of the follow would be one of the first actions you should take in this situation? o (A) Pump out all double bottoms o (B) Back the engines full astern o (C) Apply RPM to one propeller (D) Sound all tanks Page 6 of 13

7 26. You must shore up the collision bulkhead due to solid flooding forward. The bulkhead approximates an inverted triangle. The center of pressure of the shores on the bulkhead should be located. (A) approximately halfway up the bulkhead o (B) at the bottom of the bulkhead o (C) evenly over the surface of the bulkhead o (D) approximately two-thirds of the way up the bulkhead 27. The upward slope of a vessels bottom from the keel to the bilge is called. o (A) camber (B) rise of bottom o (C) rake o (D) sheer 28. Line throwing apparatus aboard ship must contain. o (A) two rockets, one of which shall be the buoyant type o (B) three rockets, one of which shall be the buoyant type (C) four rockets, two of which shall be the buoyant type o (D) five rockets, two of which shall be the buoyant type 29. How many fire axes should be carried by a 700 GT cargo vessel, navigating the Great Lakes? o (A) 4 (B) 6 o (C) 2 o (D) A fire hose with a nozzle attached must be connected to each hydrant except when exposed to heavy weather or when the. o (A) fire main system is not charged o (B) vessel is in port (C) fire hose might be damaged by cargo operations o (D) fire pumps are used for purposes other than supplying water to the fire main Page 7 of 13

8 31. You are wearing a breathing apparatus inside a tank. How many tugs on the lifeline should you give to indicate that you need help? o (A) 1 o (B) 2 o (C) 3 (D) You are on watch and the Pilot has the conn. The Master has temporarily gone below. The Pilot orders a course change which you are certain will put the vessel into imminent danger. Which should be your initial response? (A) Countermand the order and immediately notify the Master o (B) Make an appropriate entry in the deck log concerning the Pilot's order o (C) Immediately sound a short ring on the general alarm o (D) Immediately call the Master and await further orders from him 33. You should conduct a sector search under which of the following circumstances? (A) The search target is sighted and then lost. o (B) Multiple aircraft are available to assist a surface vessel. o (C) The search object is a target that will be readily detected by radar. o (D) More than one vessel is available for a search. 34. You are on a large merchant vessel entering a U.S. port. There is a Pilot on board and he has the conn. Which statement is TRUE? o (A) The Pilot is solely responsible for the internal working of the ship. (B) The Master is responsible for the safe navigation of the ship and the Pilot is employed for his local knowledge. o (C) The Pilot is solely responsible for the safe maneuvering of the ship only if he is required to be on board by law. o (D) The Pilot becomes solely responsible for the safe navigation of the vessel only if the Master relinquishes the conn. Page 8 of 13

9 35. During fueling, all doors, hatches, and ports. o (A) should be opened o (B) to windward should be opened and the ones to leeward should be closed (C) should be closed o (D) to leeward should be opened and the ones to windward should be closed 36. What is the maximum length of time that distress flares are approved for? o (A) 1 and 1/2 years o (B) 2 years (C) 3 and 1/2 years o (D) 5 years 37. In a longitudinally-framed ship, the longitudinal frames are held in place and supported by athwartship members called. o (A) stringers o (B) floors o (C) margin plates (D) web frames 38. Normally, it is desirable to have screens on the vents of potable water tanks to. (A) stop insects from entering o (B) prevent backups o (C) prevent explosions o (D) filter the incoming air 39. Which is the lifesaving signal for, "This is the best place to land"? o (A) Orange smoke signal o (B) Red star rocket (C) Green star rocket o (D) Horizontal motion of a flag Page 9 of 13

10 40. Who has the exclusive use of the radiotelephone as stated in the "Vessel Bridge-to-Bridge Radiotelephone Act"? o (A) a person designated by the Master o (B) the Master or person in charge of the vessel o (C) a person on board to pilot the vessel (D) All of the above 41. Which statement is FALSE concerning precautions during small craft fueling operations? o (A) All engines, motors, fans, etc. should be shut down when fueling. o (B) A fire extinguisher should be kept nearby. o (C) All windows, doors, hatches, etc. should be closed. (D) Fuel tanks should be topped off with no room for expansion. 42. Dry chemical extinguishers may be used on what class of fires? o (A) B and C only o (B) B only o (C) A only (D) A, B or C as marked on the extinguisher 43. The point that is halfway between the forward and after perpendicular and is a reference point for vessel construction is the. o (A) half length o (B) mid-body (C) amidships o (D) center line 44. You are testing the external flotation bladder of an immersion suit and find it has a very slow leak. Which action should be taken? o (A) Replace the inflation bladder. o (B) Replace the suit. (C) Contact the manufacturer for repair instructions. o (D) Some leakage should be expected and a topping off tube is provided; no other action is necessary. Page 10 of 13

11 45. Which portable fire extinguisher should be used on a class C fire on board a vessel? o (A) Foam o (B) Carbon tetrachloride (C) Carbon dioxide o (D) Water (stored pressure) 46. By regulation, orange smoke distress signals will expire not more than how many months from the date of manufacture? o (A) 24 months o (B) 36 months (C) 42 months o (D) 54 months 47. According to regulations, how many B-II hand portable fire extinguishers are required in the cargo tank area of an unmanned, cargo pump-equipped tank barge engaged in transferring grade B flammable liquids? o (A) One o (B) Three (C) Two o (D) None 48. A fire in a pile of canvas is classified as class. (A) A o (B) B o (C) C o (D) D 49. Your vessel has grounded on a bar. What should you do? o (A) If you cannot get clear immediately, lighten the ship by pumping all ballast overboard. (B) Switch to the high suction for condenser circulating water, if it is submerged. o (C) Run the engine full astern to keep from being set further onto the bar. o (D) All of the above Page 11 of 13

12 50. What is NOT a function of the steam drum of a marine water-tube boiler? o (A) Receives saturated steam from the generating tubes o (B) Serves as a reservoir of boiler feed water (C) Collects steam exhausted from the turbines o (D) Holds internal fittings for separation of moisture from steam Page 12 of 13

13 National Maritime Center Providing Credentials to Mariners D033DG 5/23/2016 Adapted for testing purposes only Further reproduction prohibited without permission Page 13 of 13