National Maritime Center Providing Credentials to Mariners (Sample Examination) Page 1 of 23
Choose the best answer to the following Multiple Choice Questions. 1. How does foam extinguish an oil fire? (A) By excluding the oxygen from the fire o (B) By removing the fuel source from the fire o (C) By increasing the weight of the oil o (D) By cooling the oil below the ignition temperature 2. A "contra-guide" is a type of. o (A) steering engine o (B) bow thruster (C) rudder o (D) cargo gear 3. When flammable liquids are handled in a compartment on a vessel, the ventilation for that area should be. o (A) available on standby for immediate use o (B) shut down if an explosive mixture is present (C) operated continuously while vapors may be present o (D) operated intermittently to remove vapors 4. Which will improve stability? o (A) Closing watertight doors o (B) Consuming fuel from a full tank (C) Pumping the bilges o (D) Loading cargo on deck 5. Which is a symptom of traumatic shock? o (A) Calm o (B) Strong normal pulse (C) Pale, cold skin o (D) Sweating and pale skin color Page 2 of 23
6. You are on the SS American Mariner and involved in a collision. Your draft has increased uniformly and there is about 4 feet of freeboard remaining. The vessel is on an even keel and has a long rolling period. The roll is sluggish, and the vessel hangs at the ends of a roll. Which of the following actions would you take First to correct the situation? o (A) Flood any empty double bottom tanks to decrease KG. o (B) Pump out a slack double bottom tank to reduce free surface. (C) Pump out flooding water in the cargo holds to reduce free surface. o (D) Jettison topside weights to increase freeboard. 7. You are in a lifeboat broadcasting a distress message. What information would be essential to your rescuers? o (A) Your position by latitude and longitude o (B) The nature of the distress o (C) Number of persons aboard (D) All of the above 8. A rescue helicopter's hoist area should have a radius of at least which diameter? o (A) 6 feet of clear deck o (B) 10 feet of clear deck o (C) 25 feet of clear deck (D) 50 feet of clear deck 9. Ultrasonic testing is used to determine the thickness of a vessel's shell plating and which other testing? o (A) To check the wear of the rudder carrier bearing o (B) To test the links of the anchor cables while being ranged (C) To test welds for subsurface defects o (D) To provide tail shaft clearances 10. Combustible gas indicators measure the presence of combustible gas as a percentage of the. o (A) flash point (B) lower explosive limit o (C) upper explosive limit o (D) fire point Page 3 of 23
11. Tonnage openings must be closed by means of. o (A) steel hatch boards (B) steel plates o (C) press board o (D) wooden hatch boards 12. Your vessel has a midships engine room and the cargo is concentrated in the end holds. Which is TRUE of your vessel? o (A) The vessel is sagging with compressive stress on main deck o (B) The vessel is sagging with tensile stress on main deck o (C) The vessel is hogging with compressive stress on main deck (D) The vessel is hogging with tensile stress on main deck 13. A mechanical davit is designed to automatically accomplish which task? o (A) Energize the winch for the falls o (B) Set the brake on the winch o (C) Position the boat at the embarkation station (D) Lift the boat off the inboard chocks 14. All personnel on board a vessel should be familiar with the rescue boat's. o (A) navigational systems o (B) maintenance schedules o (C) fuel consumption rates (D) boarding and operating procedure 15. Which term indicates the rise in height of the bottom plating from the plane of the base line? (A) Deadrise o (B) Molded height o (C) Sheer o (D) Camber Page 4 of 23
16. Which of the following terms defines a unit responsible for organizing search and rescue services? o (A) Search and Rescue Data Provider (SDP) (B) Rescue Co-ordination Center (RCC) o (C) Rescue Sub-center (RSC) o (D) Automated Mutual Assistance Vessel Rescue System (AMVER) 17. Which statement about a vessel's stability while dry-docking is TRUE? o (A) The stability of the vessel increases as a dock is pumped out due to the support of the keel blocks. (B) Every ton of weight bearing on the blocks acts as if a ton of weight was removed at keel level. o (C) As the dock begins to support the weight of the vessel, stability calculations are based on the ship and dock as a single unit. o (D) When the ship touches the blocks, the beam for stability purposes increases to the beam of the dry-dock. 18. To turn over an inflatable liferaft that is upside down, you should pull on which item? o (A) Canopy o (B) Sea painter o (C) Manropes (D) Righting strap 19. You are at sea in an inflatable liferaft. In high latitudes, which presents the greatest danger? o (A) Asphyxiation due to keeping the canopy closed o (B) Collapse of the raft due to cold temperatures (C) Hypothermia caused by cold temperature o (D) Starvation 20. The three conditions which cause engine shutdown are overspeed, low lube oil pressure, and which other condition? o (A) Low jacket water pressure o (B) High jacket water pressure (C) High jacket water temperature o (D) High lube oil pressure Page 5 of 23
21. You are on the second deck in the main machinery space. Utilizing illustration D037SA below what emergency equipment, if any, is located at frame 107? (A) Fire main valve and 1 1/2" fire hose o (B) Smoke detector and bell alarm o (C) CO2 fire extinguisher and 1 1/2" fire hose o (D) None of the above 22. What quality of a diesel fuel is most significant for efficient combustion? o (A) Specific heat o (B) Viscosity o (C) Flash point (D) Volatility 23. A vessel's "quarter" is that section which is. o (A) just aft of the bow (B) on either side of the stern o (C) abeam o (D) dead astern 24. What is used as an indicator of initial stability? o (A) KM o (B) KG o (C) GZ (D) GM 25. Oil fires are best extinguished by. o (A) spraying with water o (B) cooling below the ignition temperature o (C) removing the fuel (D) cutting off the supply of oxygen Page 6 of 23
26. Heave is motion along which axis? (A) The vessel's vertical axis o (B) The vessel's centerline axis o (C) The vessel's longitudinal axis o (D) The vessel's transverse axis 27. If you wear extra clothing when entering the water after abandoning ship it will accomplish which of the following? o (A) Make it more difficult to breathe o (B) Reduce your body heat (C) Help preserve body heat o (D) Weigh you down 28. How do the lights on the outside of the canopy on an inflatable life raft operate? (A) Automatically when the raft is inflated o (B) By turning the globe clockwise o (C) By a light sensor o (D) By a switch at each light 29. Line throwing equipment should NOT be operated. (A) in an explosive atmosphere o (B) near a life raft canister o (C) during a rain storm o (D) by other than credentialed officers 30. Your vessel is conducting a "Vessel Grounded Drill". Where is the plan indicating the vessel's watertight boundaries required to be located? o (A) In the damage control locker o (B) In the ship's library (C) On the navigation bridge o (D) In the engine room Page 7 of 23
31. Which name is given to the frames to which the tank top and bottom shell are fastened on a vessel? o (A) Stringers (B) Floors o (C) Tank top supports o (D) Intercostals 32. You are approaching another vessel and see that she has the signal flag "F" hoisted. What should you do? (A) Attempt to call the vessel on VHF radiotelephone because she is disabled. o (B) Change course to keep clear of the vessel because she is maneuvering with difficulty. o (C) Stop your vessel instantly. o (D) Continue on your present course since the vessel is signaling for a pilot. 33. You have completed stability calculations for your vessel prior to getting underway. Your vessel's GM is small but positive. Which of the following is true? (A) The vessel will possess a long rolling period o (B) The vessel will possess a short rolling period o (C) The vessel will possess high initial stability o (D) The vessel will possess negative stability 34. Automatic fire dampers in ventilation systems are operated by use of which item? (A) A fusible link o (B) A heat or smoke detector o (C) A remote operated valve o (D) A CO2 system pressure switch 35. You are underway in mid-ocean, when you hear a distress message over the VHF radio. The position of the sender is 20 miles away. What action should you take? o (A) Do not acknowledge because you are too far away to take action. (B) Immediately acknowledge receipt of the distress message. o (C) Do not acknowledge receipt until other ships nearer to the distress have acknowledged. o (D) Defer acknowledgment for a short interval so that a coast station may acknowledge receipt. Page 8 of 23
36. What is the preferred agent used in fighting a helicopter crash fire? o (A) Halon o (B) Water (C) Foam o (D) CO2 37. The vessel shown in illustration D025DG has broken down and you are going to take her in tow. The wind is on her starboard beam. Both vessels are making the same amount of leeway. Where should you position your vessel when you start running lines? o (A) A o (B) B (C) C o (D) D 38. You are at sea and have received a General Emergency message announcing the outbreak of war in Europe. You are directed to comply with the instructions in NGA (NIMA) PUB 117, Chapter Eight. Which statement is TRUE? (A) You should attempt to submit an AMVER report to NSA. o (B) When over 200 miles from a port in the danger zone, you should not darken ship. o (C) You should only enter a port in the danger zone during hours of darkness. o (D) If on a coastwise voyage along the east coast of the U.S., you should put into the nearest port. 39. While steering by autopilot you notice that the vessel is deviating from the given course and there is no follow up with corrective rudder action to return to the proper heading. The emergency operating procedure should require you to immediately change operation from. o (A) "hand" to "gyro" o (B) "control" to "hand" (C) "gyro" to "hand" o (D) "gyro" to "control" Page 9 of 23
40. What should you do for a crew member who has suffered frostbite to the toes of both feet? (A) Immerse the feet in warm water o (B) Warm the feet with a heat lamp o (C) Warm the feet at room temperature o (D) Rub the feet 41. What is the proper direction of flow through a globe valve when the valve is installed to be in a normally open position? o (A) Direction is unimportant o (B) Depends on seat configuration o (C) From above the seat (D) From below the seat 42. Why are most break bulk vessels built with the transverse framing system rather than the longitudinal system? o o (A) The numerous longitudinal frames cause excessive broken stowage. (B) The transverse system provides better support to the varying cargo densities on a break bulk vessel. (C) The deep web frames interfere with the stowage of break bulk cargo. o (D) The transverse system is more resistant to hog and sag stresses. 43. How often are CO2 cylinders forming part of a fixed fire extinguishing system required to be pressure tested? o (A) year o (B) 2 years o (C) 6 years (D) 12 years 44. Regulations define the bulkhead deck as. (subdivision and stability regulations) (A) the uppermost deck to which transverse watertight bulkheads extend o (B) the lowermost deck to which transverse watertight bulkheads extend o (C) the uppermost complete deck o (D) any deck extending from stem to stern Page 10 of 23
45. You are approaching a ship that is broken down and are preparing to take her in tow. BEFORE positioning your vessel to pass the towline, which action should you take? o (A) Install chafing gear on the towline (B) Compare the rate of drift between the ships o (C) Have traveling lizards rigged to guide the towline while it is paid-out o (D) Secure the bitter end of the towing hawser to prevent loss if the tow is slipped 46. Which term is used for the horizontal distance between the vertical lines of action of gravity and the buoyant forces? o (A) Metacentric radius o (B) Metacentric height (C) Righting arm o (D) Height of the center of buoyancy 47. Why does a centrifugal bilge pump require priming? o (A) Head pressure must equal discharge pressure (B) Lack of ability to lift liquid to the impellers o (C) To overcome resistance of water in the discharge line o (D) To lubricate shaft seals 48. In illustration D001SA below, what represents the center of gravity? (A) G o (B) M o (C) B o (D) GZ 49. You have abandoned ship in tropical waters. Which procedure(s) should be used during a prolonged period in a raft? o (A) Get plenty of rest. o (B) Wet clothes during the day to decrease perspiration. o (C) Keep the entrance curtains open. (D) All of the above Page 11 of 23
50. Distress signals may be. o (A) red flares o (B) sound signals o (C) smoke signals (D) Any of the above 51. How does good housekeeping prevent fires on a vessel? o (A) Improving personnel qualifications (B) Eliminating potential fuel sources o (C) Allowing better access in an emergency o (D) Eliminating trip hazards 52. A victim has suffered a second-degree burn to a small area of the lower arm. What is the proper first aid treatment for this injury? (A) Immerse the arm in cold water for 1 to 2 hours, apply burn ointment, and bandage. o (B) Open any blisters with a sterile needle, apply burn ointment and bandage. o (C) Immerse the arm in cold water for 1 to 2 hours, open any blister and apply burn ointment. o (D) Apply burn ointment, remove any foreign material and insure that nothing is in contact with the burn. 53. How are all diesel engines classified? o (A) Vacuum ignition (B) Compression ignition o (C) Four cycle o (D) External combustion 54. 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) Secure the litter firmly to the deck to prevent any unnecessary movement o (D) Verify the litter is securely hooked to the winch cable before the patient is loaded Page 12 of 23
55. Which is the term given to the stability which remains after a compartment is flooded? o (A) Immersion stability (B) Damage stability o (C) Initial stability o (D) Intact stability 56. If a powdered aluminum fire is being fought, which is the most effective extinguishing agent to use? o (A) Water fog o (B) Steam o (C) CO2 (D) Dry powder 57. While proceeding towards a distress site you hear the message "Seelonce Feenee" over the radiotelephone. Which action should you take? (A) Resume normal communications on the guarded frequency. o (B) Do not transmit over the radiotelephone. o (C) Relay the initial distress message to the nearest shore station. o (D) Resume base course and speed because the distress situation is over. 58. A tank with internal dimensions of 40 feet X 20 feet X 12 feet is pressed with fuel oil weighing 54 pounds per cubic foot. What is the weight, in short tons, of the liquid? o (A) 11.3 short tons (B) 259.2 short tons o (C) 518.4 short tons o (D) 135.0 short tons 59. Which is required to be marked on the vessel's life preservers? o (A) The vessel's home port (B) The vessel's name o (C) The stowage space assigned o (D) The crew member's article number Page 13 of 23
60. In illustration D016SA below, what number indicates the frapping line? o (A) 1 (B) 2 o (C) 3 o (D) 4 61. Which term is given to the brickwork surrounding the firebox of a boiler? (A) Refractory o (B) The waterwall o (C) The screen wall o (D) The fire plate 62. In illustration D039SA below, what is the fire control plan symbol represented by number (7)? o (A) CO2 horn (B) Space protected by CO2 o (C) Release station for CO2 o (D) CO2 alarm 63. The term displacement refers to which of the following? o (A) The gross tonnage of a vessel o (B) The cubic capacity of a vessel o (C) The deadweight carrying capacity of a vessel (D) The number of long tons of water displaced by a vessel afloat 64. In illustration D039SA below, which Fire Control Plan symbol represents an emergency generator? o (A) 20 o (B) 32 (C) 67 o (D) 68 Page 14 of 23
65. In illustration D033DG below, which letter indicates a butt? (A) D o (B) F o (C) J o (D) E 66. What must be accurately determined to assess the potential for progressive flooding after a vessel has been damaged? o (A) The operation of the machinery space bilge level alarms o (B) The capacity of the water sprinkler systems (C) The integrity of the water tight boundaries o (D) All of the above 67. When electrical equipment is involved in a fire, where should the stream of dry chemicals be directed? o (A) Used to shield against electrical shock (B) Aimed at the source of the flames o (C) Shot off a flat surface onto the flames o (D) Fogged above the equipment 68. When a vessel is stationary and in a hogging condition, the main deck is under which type of stress? (A) Tension o (B) Shear o (C) Racking o (D) Compression 69. What is the purpose of the inclining experiment? (A) To determine the lightweight center of gravity location o (B) To verify data in the vessel's operating manual o (C) To determine the location of the metacenter o (D) To verify the vessel's hydrostatic data Page 15 of 23
70. When transferring survivors from an enclosed lifeboat to a rescue vessel, personnel on board the boat should take which action? o (A) Remove their life preservers to make it easier to climb on board the rescue vessel o (B) Climb on top of the boat while waiting for their turn to transfer to the rescue vessel o (C) Enter the water and swim over to the rescue vessel (D) Remain seated inside and make the transfer one person at a time Page 16 of 23
National Maritime Center Providing Credentials to Mariners D033DG 5/23/2016 Adapted for testing purposes only Further reproduction prohibited without permission Page 17 of 23
National Maritime Center Providing Credentials to Mariners D039SA 5/23/2016 Adapted for testing purposes only Further reproduction prohibited without permission Page 18 of 23
National Maritime Center Providing Credentials to Mariners D039SA 5/23/2016 Adapted for testing purposes only Further reproduction prohibited without permission Page 19 of 23
National Maritime Center Providing Credentials to Mariners D025DG 5/23/2016 Adapted for testing purposes only Further reproduction prohibited without permission Page 20 of 23
National Maritime Center Providing Credentials to Mariners D001SA 5/23/2016 Adapted for testing purposes only Further reproduction prohibited without permission Page 21 of 23
National Maritime Center Providing Credentials to Mariners D016SA 5/23/2016 Adapted for testing purposes only Further reproduction prohibited without permission Page 22 of 23
National Maritime Center Providing Credentials to Mariners D037SA 2/8/2016 Adapted for testing purposes only from Graphical Symbols for Shipboard Fire Control Plans IMO Resolution A.952(23) Adopted 2003 Further reproduction prohibited without permission Page 23 of 23