National Maritime Center Providing Credentials to Mariners (Sample Examination) Page 1 of 12
Choose the best answer to the following Multiple Choice Questions. 1. 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 2. Each fireman's outfit and its spare equipment on a tankship must be stowed in a(n). o (A) unlocked cabinet in the machinery space (B) separate and accessible location o (C) location near a fire hydrant o (D) locked cabinet in the machinery space 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 self-contained breathing device should not be used in which situation? o (A) Fighting fires that produce heavy smoke o (B) Compartments containing poisonous vapors o (C) Oxygen deficient spaces (D) Underwater search 5. Which does the AMVER system require? o (A) Sailing plans to be sent before departure o (B) More frequent reports in heavy weather (C) A position report within 24 hours of departure o (D) Arrival reports to be sent within 8 hours of arrival Page 2 of 12
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. Your vessel has been damaged and is partially flooded. The first step to be taken in attempting to save the vessel is to. o (A) pump out the water inside the vessel (B) establish flooding boundaries and prevent further spread of flood water o (C) calculate the free surface effect and lost buoyancy to determine the vessel's stability o (D) plug the hole(s) in the outer shell 8. Where, due to the arrangement of the vessel, lifejackets may become inaccessible, additional lifejackets shall be carried. o (A) for the people on bridge watch (B) as determined by the OCMI o (C) for 50% of the crew of the vessel, not including those assigned to engineering duties o (D) for the forward lifeboats 9. If an engine shuts down due to high jacket water temperature, what action should be taken? o (A) Slowly add cool water to the expansion tank (B) Allow engine to cool gradually o (C) Open crankcase explosion covers o (D) Back flush the cooling water system 10. You are picking up a conscious person that has fallen overboard in one of the vessels motor boats. Recovery is easier in a light breeze if you approach from which direction? (A) Windward with the victim to leeward o (B) Approach with the wind on your port side o (C) Approach with the wind on your starboard side o (D) Leeward with the victim to windward Page 3 of 12
11. 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. 12. 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 13. You are proceeding to the area of reported distress. When you arrive at the reported position, the vessel in distress is not sighted. What type of search should be conducted? o (A) Sector search (B) Expanding square o (C) Track crawl o (D) Parallel track search 14. (3.4.1.2C-17) 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. What factor is essential to the proper operation of a radiator cooled engine? o (A) Low heat of combustion o (B) Cooling water pressure o (C) Jacket water treatment (D) Air flow through the radiator Page 4 of 12
16. The percentage of the total surface area or volume of a flooded compartment that can be occupied by water caused by damage is known as. (A) permeability o (B) one compartment standard o (C) form gain o (D) center of flotation 17. If you have to jump in the water when abandoning ship, your legs should be. o (A) spread apart as far as possible (B) extended straight down and crossed at the ankles o (C) in a kneeling position o (D) held as tightly against your chest as possible 18. Free communication effect is in direct proportion to. o (A) length of space only o (B) width of space only (C) length and width of space o (D) neither length nor width 19. 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 20. In illustration D033DG below, what is the area indicated by the letter G is known as? o (A) garboard o (B) entrance (C) turn of the bilge o (D) stringer plate Page 5 of 12
21. You are using a racetrack turn to recover a man overboard. The vessel is first steadied when how many degrees away from the original heading? o (A) 60 to 70 o (B) 90 o (C) 135 (D) 180 22. What factor is essential to the proper operation of a radiator cooled engine? o (A) Cooling water pressure (B) Air flow through the radiator o (C) Jacket water treatment o (D) Low heat of combustion 23. Deficient oxygen content inside a chain locker can be detected with which item? o (A) Litmus paper o (B) A combustible gas indicator o (C) An oxygen breathing apparatus (D) An oxygen indicator 24. The exhaust pipe must be gas tight throughout its entire length otherwise. o (A) entry of air may cause vapor lock (B) carbon monoxide may enter the interior of the vessel o (C) the joint gaskets may be blown o (D) bilge water may enter the exhaust pipe 25. Which of the following organizations operate the AMVER system? o (A) American Bureau of Shipping o (B) United States Navy o (C) International Maritime Organization (D) U.S. Coast Guard Page 6 of 12
26. The greatest effect on stability occurs from loose liquids flowing. o (A) from fore to aft in the tanks of a vessel o (B) from side to side in the tanks of the vessel (C) in and out of a vessel that is holed in a wing tank o (D) in and out of a vessel that is holed in a peak tank 27. When a wind force causes a vessel to heel to a static angle, the. o (A) deck-edge immersion occurs o (B) centers of buoyancy and gravity are in the same vertical line (C) righting moment equals the wind-heeling moment o (D) center of buoyancy remains the same 28. 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 29. Which vessel greater than 100 GT is NOT required to have an EPIRB. o (A) A towing vessel o (B) A fishing vessel (C) A non self-propelled vessel in tow o (D) A sailing vessel 30. Why should foam be banked off a bulkhead when extinguishing an oil fire? (A) To prevent agitation of the oil and spreading the fire o (B) To prevent any oil on the bulkheads from igniting o (C) To coat the surrounding bulkheads with foam in case the fire spreads o (D) To cool the bulkhead closest to the fire Page 7 of 12
31. A foam-type portable fire extinguisher would be most useful in combating a fire in. (A) flammable liquids o (B) combustible metallic solids o (C) a piece of electrical equipment o (D) solid materials such as wood or bales of fiber 32. The deck beam brackets of a transversely framed vessel resist. (A) racking stresses o (B) hogging stresses o (C) shearing stresses o (D) sagging stresses 33. If more than one raft is manned after the vessel has sunk, you should take which action? o (A) Spread out to increase the possibility of a search aircraft finding you (B) Tie the rafts together and try to stay in a single group o (C) Reduce the number of rafts by getting as many people as possible into as few rafts as possible o (D) Go in a different direction in search of land 34. Which weld fault can only be detected by a method that examines the internal structure of a weld? o (A) Overlap (B) Lack of penetration o (C) Undercut o (D) Lack of reinforcement 35. What is the function of wearing rings found on some centrifugal pumps? o (A) Absorb erosion of high-velocity discharge stream o (B) Seal pump shaft against entry of air (C) Isolate the outlet side from the inlet side o (D) Dampen the turbulent discharge flow Page 8 of 12
36. When communicating on the radiotelephone using plain English, what procedure word indicates the end of my transmission and that a response is necessary? (A) Over o (B) Out o (C) Wilco o (D) Roger 37. Deballasting a double bottom has what effect on KG? o (A) KG increases at light drafts and decreases at deep drafts. (B) KG is increased. o (C) KG is decreased. o (D) KG is not affected. 38. 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 39. Horizontal transverse motion of a vessel is known as. o (A) heave o (B) pitch (C) sway o (D) surge 40. The vertical motion of a floating vessel in which the entire hull is lifted by the force of the sea is known as. (A) heave o (B) pitch o (C) surge o (D) sway Page 9 of 12
41. All diesel engines are classified as. o (A) four cycle o (B) external combustion (C) compression ignition o (D) vacuum ignition 42. 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 43. The geometric center of the underwater volume is known as the. o (A) center of gravity o (B) center of flotation o (C) tipping center (D) center of buoyancy 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. 45. A fire in a pile of canvas is classified as class. (A) A o (B) B o (C) C o (D) D Page 10 of 12
46. 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 47. If a lifeboat is stowed 40 feet above the light water draft and 200 feet from the bow, how long must the sea painter be? (A) 80 feet o (B) One third the length from the bow to where the lifeboat is stowed o (C) Sufficiently long enough to reach the water when the vessel has an adverse list of 15Â o (D) 160 feet 48. 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 49. What must be accurately determined to assess the potential for progressive flooding after a vessel has been damaged? o (A) The capacity of the water sprinkler systems o (B) The operation of the machinery space bilge level alarms (C) The integrity of the water tight boundaries o (D) All of the above 50. What power source actuates a solenoid valve? (A) Electric current o (B) Air pressure o (C) Mechanical force o (D) Hydraulic pressure Page 11 of 12
National Maritime Center Providing Credentials to Mariners D033DG 5/23/2016 Adapted for testing purposes only Further reproduction prohibited without permission Page 12 of 12