National Maritime Center

National Maritime Center Providing Credentials to Mariners (Sample Examination) Page 1 of 19

Choose the best answer to the following Multiple Choice Questions. 1. Transverse frames are more widely spaced on a ship that is designed with the. (A) longitudinal system of framing o (B) centerline system of framing o (C) isometric system of framing o (D) transverse system of framing 2. What is the minimum number of people required to safely handle a 1-1/2 inch fire hose? o (A) 1 (B) 2 o (C) 3 o (D) 4 3. Your vessel displaces 641 tons. The existing deck cargo has a center of gravity of 3.6 feet above the deck and weighs 36 tons. If you load 22 tons of ground tackle with an estimated center of gravity of 2.0 feet above the deck, what is the final height of the CG of the deck cargo? o (A) 2.33 feet o (B) 2.55 feet o (C) 2.77 feet (D) 2.99 feet 4. Which statement about the free surface effect is TRUE? o (A) The effect can be reduced by shifting weights vertically. o (B) The free surface effect usually increases at angles of heel above 25. o (C) The effect increases if the tank is off the centerline. (D) It has the same affect on initial stability whether the tank is 75% full or 25% full. 5. A crew member has just fallen overboard off your port side. Which action should you take? (A) Immediately put the rudder over hard left. o (B) Immediately put the engines astern. o (C) Immediately put the rudder over hard right. o (D) Wait until the stern is well clear of the man and then put the rudder over hard right. Page 2 of 19

6. Which is the MOST important consideration for a tank vessel? o (A) The longitudinal center of gravity o (B) The vertical center of gravity o (C) GM (D) The stress on the hull 7. To keep injured survivors warm in the water after abandoning ship, they should. o (A) remove their life preservers and hold on to the uninjured survivors (B) be placed in the middle of a small circle formed by the other survivors in the water o (C) sip water at intervals of fifteen minutes o (D) float on their backs with their arms extended for maximum exposure to the air 8. The SS AMERICAN MARINER has drafts of: FWD 22'-03", AFT 25'-05". Use the white pages of the Stability Data Reference Book to determine the drafts if you ballast the forepeak with 97 tons of seawater. (A) FWD 23'-00.5", AFT 24'-11.1" o (B) FWD 22'-11.9", AFT 24'-11.7" o (C) FWD 22'-11.3", AFT 25'-00.3" o (D) FWD 22'-10.7", AFT 25'-00.9" 9. 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 10. You are having a Coast Guard inspection. All carbon dioxide fire extinguishers aboard will be. o (A) sent ashore to an approved service facility o (B) checked for pressure loss o (C) discharged and recharged (D) weighed Page 3 of 19

11. When possible, what is the FIRST step in fighting an engine fuel-pump fire which results from a broken fuel line? o (A) Check the spread of the fire with foam. (B) Close the fuel line valve. o (C) Secure all engine room doors, hatches, and vents. o (D) Cast the barge off the wharf. 12. You have hand launched an inflatable liferaft. What should be one of your FIRST actions after all persons have boarded the liferaft? o (A) Inflate the liferaft floor. o (B) Open the equipment pack. (C) Cut the sea painter and clear the vessel. o (D) Decide on food and water rations. 13. Topside icing that blocks freeing ports and scuppers. o (A) increases the effective freeboard and increases the wind-heel affect (B) may decrease stability by increasing free surface effect due to water on deck o (C) is usually below the center of gravity and has little effect on stability o (D) will cause water on deck to pocket and increase stability 14. If heavy smoke is coming from the paint locker, what should be the FIRST firefighting response? (A) Secure the ventilation o (B) Release the CO2 flooding system o (C) Enter and use a portable extinguisher o (D) Open the door to evaluate the extent of the fire 15. The fittings used to secure a watertight door are known as. (A) dogs o (B) clasps o (C) clamps o (D) latches Page 4 of 19

16. What would most likely prevent a SART's signal from being detected? o (A) Heavy sea swells o (B) The rescue personnel were monitoring the 3-cm radar o (C) Signal absorption by the ionosphere (D) The rescue personnel were monitoring the 10-cm radar 17. A thrust block is designed to. o (A) absorb the shock of wave pressure at the bow (B) transmit the thrust of the propeller to the vessel o (C) transmit the thrust of the engine to the propeller o (D) be placed between the engines and the foundation to absorb the vibration 18. In nautical terminology a "dog" is a. (A) device to force a water tight door against the frame o (B) crow bar o (C) wedge o (D) heavy steel beam 19. 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 receipt until other ships nearer to the distress have acknowledged. o (B) Defer acknowledgment for a short interval so that a coast station may acknowledge receipt. o (C) Do not acknowledge because you are too far away to take action. (D) Immediately acknowledge receipt of the distress message. 20. In illustration D014SA below, which item number correctly identifies the towing connection? o (A) 7 o (B) 9 (C) 19 o (D) 21 Page 5 of 19

21. Which statement is TRUE concerning carbon dioxide? (A) It is an inert gas. o (B) It is used mostly on class A fires. o (C) It is lighter than air. o (D) All of the above 22. Fixed CO2 systems would not be used on crew's quarters or. (A) spaces open to the atmosphere o (B) the engine room o (C) cargo holds o (D) the paint locker 23. When abandoning ship, after launching the motor lifeboat which is the recommended action to take? (A) Stay in the immediate area o (B) Go in one direction until fuel runs out o (C) Take a vote on which direction you should go o (D) Plot a course for the nearest land 24. What is the purpose of limber holes? o (A) To allow for stress and strain in rough waters o (B) To allow for air circulation o (C) To allow water in the boat to drain overboard (D) To allow water in the bilge to get to the boat drain 25. 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 Page 6 of 19

26. When the height of the metacenter is greater than the height of the center of gravity a vessel has which type of stability? o (A) Negative o (B) Unstable (C) Stable o (D) Neutral 27. What is the generally accepted method of determining whether the atmosphere within a cargo tank is explosive, too rich, or too lean to support combustion? o (A) Use the open flame test on a small sample that has been taken from the tank. (B) Use an explosimeter (Gas monitors). o (C) Enter the tank with an oxygen analyzer. o (D) Send a gas sample ashore for laboratory analysis. 28. The term displacement refers to which of the following? (A) number of long tons of water displaced by a vessel afloat o (B) cubic capacity of a vessel o (C) deadweight carrying capacity of a vessel o (D) gross tonnage of a vessel 29. 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? o (A) You should only enter a port in the danger zone during hours of darkness. o (B) If on a coastwise voyage along the east coast of the U.S., you should put into the nearest port. o (C) When over 200 miles from a port in the danger zone, you should not darken ship. (D) You should attempt to submit an AMVER report to NSA. Page 7 of 19

30. You are on a ship that has broken down and are preparing to be taken in tow. You will use your anchor cable as part of the towline. Which statement is TRUE? o (A) The anchor cable should be veered enough to allow the towline connection to be just forward of your bow. o (B) The anchor cable should be veered enough to allow the towline connection to be immediately astern of the towing vessel. o (C) The anchor cable should be led out through a chock, if possible, to avoid a sharp nip at the hawsepipe lip. (D) The strain of the tow is taken by the riding pawl, chain stopper, and anchor windlass brake. 31. For small angles of inclination, if the KG were equal to the KM, then the vessel would have. o (A) maximum stability o (B) positive stability (C) neutral stability o (D) negative stability 32. Which of the following is NOT required to be part of a vessel's Fire Control Plan? o (A) Ventilation dampers o (B) Ventilation fan location (C) Ventilation fan capacity o (D) Ventilation fan control 33. Which statement about firefighting foam is TRUE? o (A) To be most effective, foam should be directed at the base of the fire. (B) Foam conducts electricity. o (C) Foam can ONLY be used to extinguish class A fires. o (D) Foam is most effective on burning liquids which are flowing. 34. 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 Page 8 of 19

35. The time required to incline from port to starboard and back to port again is called. o (A) initial stability (B) rolling period o (C) range of stability o (D) inclining moment 36. 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 37. A drill must be conducted in the use of the line throwing appliance at least once in every. o (A) 2 months (B) 3 months o (C) 4 months o (D) 5 months 38. 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 39. Which signal would be used by a shore rescue unit to indicate "Landing here highly dangerous"? o (A) The firing of a white star signal (B) Horizontal motion with a white flag o (C) Vertical motion of a white light o (D) Code letter "K" by blinker light Page 9 of 19

40. 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) Secure the bitter end of the towing hawser to prevent loss if the tow is slipped o (B) Install chafing gear on the towline (C) Compare the rate of drift between the ships o (D) Have traveling lizards rigged to guide the towline while it is paid-out 41. What is the meaning of the signal SA T1035 RQ when sent by the International code of Signals? o (A) I am altering course to 103.5 T. o (B) Is the latitude 10 35'? (C) Can you proceed at 1035 local time? o (D) The longitude is 10 35'. 42. When attempting to enter a compartment containing a fire, which method of applying water is best? o (A) Solid stream directed toward the overhead o (B) Straight stream directed into the center of the fire (C) Sweeping the compartment with a fog stream o (D) High-velocity fog stream directed toward the overhead 43. When do U.S. regulations require your vessel's EPIRB to be tested? o (A) prior to use o (B) weekly (C) monthly o (D) annually 44. When the alarm bell sounds on a positive-pressure, self-contained breathing apparatus, how long will reserve air supply last? (A) About 4-5 minutes o (B) About 12-15 minutes o (C) About 8-10 minutes o (D) About 18-20 minutes Page 10 of 19

45. The time required to incline from bow down to stern down and return to bow down again is called. (A) pitching period o (B) amplitude moment o (C) inclining moment o (D) rolling period 46. One of your crew members falls overboard from the starboard side. You should IMMEDIATELY take which action? (A) Throw the crew member a life preserver o (B) Begin backing your engines o (C) Position your vessel to windward and begin recovery o (D) Apply left rudder 47. 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 48. A spark arrestor. o (A) keeps sparks from falling into an open tank o (B) grounds static electricity (C) prevents sparks from getting out of an engine's exhaust system o (D) secures covers on ullage openings 49. Which kind(s) of broadcasts are available through Safety NET? (A) MSI and messages to pre-defined groups of subscribers o (B) Coastal weather broadcasts o (C) Hourly NOAA weather broadcasts from the NWS o (D) MSI and vessel traffic lists Page 11 of 19

50. 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 51. A self-righting survival craft will return to an upright position provided that all personnel. o (A) are seated with seat belts on and doors open (B) are seated with seat belts on and doors shut o (C) are to shift to one side to right it o (D) escape from the craft 52. 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 Page 12 of 19

53. The SS AMERICAN MARINER is ready to bunker with drafts of FWD 20'-04", AFT 23'-06". After all bunkers are on board, soundings indicate the tonnages shown in table ST-0172 below. Use the white pages of The Stability Data Reference Book to determine the free surface correction. o (A) 0.62 foot (B) 0.80 foot o (C) 0.85 foot o (D) 0.99 foot 54. In illustration D039SA below, which fire control plan symbol designates a space or compartment protected by Halon 1301? o (A) 10 (B) 11 o (C) 12 o (D) 44 55. To ensure receipt of all relevant MSI, a NAVTEX receiver should be turned on at least how many hours prior to departure from port? (A) 4 o (B) 6 o (C) 2 o (D) 8 Page 13 of 19

56. All of the following are recognized distress signals under the Navigation Rules EXCEPT which signal? o (A) The repeated raising and lowering of outstretched arms (B) A green star signal o (C) Orange-colored smoke o (D) Red flares 57. When a vessel is stationary and in a hogging condition, the main deck is under. (A) tension stress o (B) shear stress o (C) racking stress o (D) compression stress 58. Radiation spreads a fire by. o (A) heated gases flowing through ventilation systems o (B) burning liquids flowing into another space (C) transferring heat across an unobstructed space o (D) transmitting the heat of a fire through the ship's metal 59. The AMVER system for vessels in the Gulf of Mexico is administered by which organization? o (A) Minerals Management Service o (B) Department of Energy (C) U.S. Coast Guard o (D) Corps of Engineers 60. 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 Page 14 of 19

61. If your vessel has a GM of one foot and a breadth of 50 feet, what is your vessel's estimated rolling period? o (A) 15 seconds o (B) 11 seconds (C) 22 seconds o (D) 20 seconds 62. You must shore up a bulkhead due to solid flooding forward. The bulkhead approximates a rectangle. The center of pressure of the shores on the bulkhead should be located. o (A) evenly over the surface of the bulkhead o (B) approximately halfway up the bulkhead (C) approximately one-third of the way up the bulkhead o (D) at the bottom of the bulkhead 63. A fire in a pile of canvas is classified as class. (A) A o (B) B o (C) C o (D) D 64. If water is rising in the bilge of a survival craft, you should first. o (A) check for cracks in the hull o (B) abandon the survival craft (C) check the bilge drain plug o (D) shift all personnel to the stern 65. 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 Page 15 of 19

66. What is the spoken emergency signal for a distress signal over a VHF radio? o (A) Pan o (B) Red Alert (C) Mayday o (D) Security 67. 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 68. If a vessel takes a sudden, severe list or trim from an unknown cause, you should FIRST. o (A) assume the cause is environmental forces o (B) counterflood (C) determine the cause before taking countermeasures o (D) assume the shift is due to off-center loading 69. A situation has occurred in which your vessel must be towed. When the towing vessel passes the towing line to you, where should you secure the line? o (A) At the stern o (B) To the base of the foremast (C) To the forwardmost bitts o (D) To the forward part of the deckhouse 70. Forces within a vessel may cause a difference between the starboard and port drafts. What is this difference called? o (A) trim (B) list o (C) flotation o (D) heel Page 16 of 19

National Maritime Center Providing Credentials to Mariners D014SA 5/23/2016 Adapted for testing purposes only Further reproduction prohibited without permission Page 17 of 19

National Maritime Center Providing Credentials to Mariners D039SA 5/23/2016 Adapted for testing purposes only Further reproduction prohibited without permission Page 18 of 19

National Maritime Center Providing Credentials to Mariners D039SA 5/23/2016 Adapted for testing purposes only Further reproduction prohibited without permission Page 19 of 19