National Maritime Center

Transcription

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. The percentage of the total surface area or volume of a flooded compartment that can be occupied by water caused by damage defines which term? (A) Permeability o (B) One compartment standard o (C) Center of flotation o (D) Form gain 2. Which statement is TRUE concerning radiotelephones on board towing vessels? o (A) Only the Master of the vessel is allowed to speak over the radiotelephone. o (B) There cannot be a radiotelephone located anywhere except in the wheelhouse. (C) The officer in charge of the wheelhouse is considered to have the radiotelephone watch. o (D) Only distress messages may be transmitted over channel What does a pyrometer measure on a diesel engine? o (A) Water pressure (B) Exhaust temperature o (C) Air box pressure o (D) Water temperature 4. Which meets the requirement of an independent backup system on an electric start survival craft? o (A) A hydraulic system o (B) A backup system is not required o (C) A pneumatic system (D) A second rechargeable spare battery 5. If a vessel is sagging, what kind of stress is placed on the sheer strake? o (A) Tension (B) Compression o (C) Racking o (D) Thrust Page 2 of 13

3 6. Paints and solvents on a vessel should be. o (A) covered at all times to protect from ignition sources (B) returned to the paint locker after each use o (C) stored safely at the work site until work is completed o (D) stored in a suitable gear locker 7. Fire dampers prevent the spread of fire by. o (A) radiation o (B) conduction (C) convection o (D) direct contact 8. The greatest effect on stability occurs from loose liquids flowing. o (A) from side to side in the tanks of the vessel o (B) from fore to aft in the tanks of a vessel o (C) in and out of a vessel that is holed in a peak tank (D) in and out of a vessel that is holed in a wing tank 9. Due to the shape of the sea anchor, which is the best way to haul it back aboard? o (A) Getting all hands to assist hauling it in o (B) Cutting the line, as you cannot haul it back in (C) Pull its trip line and haul it in o (D) Hauling in on the anchor line as you would any anchor 10. Recharging a previously used cartridge-operated dry-chemical extinguisher is accomplished by. o (A) recharging the cartridge and refilling it with powder o (B) authorized fire equipment servicing personnel only (C) replacing the propellant cartridge and refilling with powder o (D) puncturing the cartridge seal after installation Page 3 of 13

4 11. When choosing extinguishers to fight a Class "B" fire do NOT use which type of extinguisher? o (A) Carbon dioxide (B) Water (cartridge-operated) o (C) Dry chemical o (D) Foam (stored-pressure type) 12. After clearing the vessel, what is one of the FIRST things you would do in an inflatable liferaft? o (A) Post a lookout. (B) Pick up other survivors. o (C) Open equipment pack. o (D) Issue anti-seasickness medicine. 13. Your vessel has 3 lifeboats on each side. What is designated boat number of the middle boat on the starboard side? o (A) 2 o (B) 2 STARBOARD (C) 3 o (D) When should you first have any food or water after boarding a lifeboat or liferaft? o (A) After 12 hours (B) After 24 hours o (C) Within 48 hours o (D) Some food and water should be consumed immediately and then not until 48 hours later. 15. You abandoned ship in the North Atlantic and one of the crew members is hypothermic. During a SAR helicopter extraction which lifting device should be avoided when hoisting this patient to the aircraft? o (A) The rescue litter o (B) The rescue net (C) The rescue sling o (D) The rescue basket Page 4 of 13

5 16. What should be used to steer an open lifeboat if the rudder becomes lost or damaged? (A) Steering oar o (B) Sea anchor o (C) Spare rudder o (D) Daggerboard 17. The float free link attached to a sea painter on an inflatable liferaft has a breaking strength of. o (A) lbs for buoyant apparatus with a capacity of 11 to 20 persons o (B) lbs for buoyant apparatus with a capacity of 21 persons or more o (C) lbs for buoyant apparatus with a capacity of 10 persons or less (D) All of the above 18. What is the radiotelephone urgency signal? (A) PAN PAN o (B) MAYDAY o (C) SECURITE o (D) SEELONCE FEENE 19. The single turn method of returning to a man overboard should be used ONLY if which condition exists? o (A) The conning officer is inexperienced o (B) A boat will be used to recover the man (C) The vessel is very maneuverable o (D) The man is reported missing rather than immediately seen as he falls overboard 20. What time of day would an SSB radio have the longest transmitting range? o (A) At noon (B) During darkness o (C) Daylight before noon o (D) Daylight after noon Page 5 of 13

6 21. Which action would you take to get low-velocity fog from an all-purpose nozzle? o (A) Attach the bronze nozzle tip to the fog outlet of the nozzle o (B) Simply move the handle to the vertical position on the nozzle o (C) Attach an applicator to the solid stream outlet on the nozzle (D) Attach an applicator to the nozzle in place of the bronze nozzle tip 22. What is the name given to the lines that are passed around the falls to hold the boat and prevent it from swinging violently. (A) Frapping lines o (B) Tricing lines o (C) Life lines o (D) Tripping lines 23. When rendering assistance to personnel in the water a SAR helicopter utilizes a rescue sling for most extractions. In which case would the use of a litter be preferred? o (A) When the person has a pacemaker and static discharge is a concern o (B) When the person is not trained in the use of the rescue sling o (C) When the person is suffering from fatigue (D) When the person is suffering from hypothermia 24. When a wind force causes a vessel to heel to a static angle, the. o (A) deck-edge immersion occurs o (B) center of buoyancy remains the same o (C) centers of buoyancy and gravity are in the same vertical line (D) righting moment equals the wind-heeling moment 25. Your vessel is discharging containers from the main deck with the ship's cranes. Which of the following must be taken into account when calculating the center of gravity as the containers are discharged? o (A) The vertical distance from the main deck plus the height of the container o (B) The vertical distance from the main deck plus half the height of the container (C) The vertical distance from the main deck plus the vertical distance to the head of the boom o (D) The vertical distance from the main deck to the heel of the boom plus half the height of the container Page 6 of 13

7 26. 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. She is making more leeway than you. Where should you position your vessel when you start running lines? o (A) A o (B) B o (C) C (D) D 27. Which portable fire extinguisher should be used on a class C fire on board a vessel? o (A) Water (stored pressure) (B) Carbon dioxide o (C) Foam o (D) Carbon tetrachloride 28. Which one of the following signals is made at night by a lifesaving station to indicate "Landing here highly dangerous"? o (A) Vertical motion of a white light or flare (B) Horizontal motion of a white light or flare o (C) White star rocket o (D) Vertical motion of a red light or flare 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? (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. Page 7 of 13

8 30. CO2 cylinders must be recharged when the weight of the charge in the cylinder is less than what percent of the stamped full weight of the charge? o (A) 80% o (B) 85% (C) 90% o (D) 95% 31. The vertical motion of a floating vessel in which the entire hull is lifted by the force of the sea is known by which term? (A) Heave o (B) Pitch o (C) Surge o (D) Sway 32. Which is the normal tendency for a loaded tanker? o (A) To be very tender o (B) Have a permanent list o (C) Hog (D) Sag 33. Which term defines the horizontal fore-and-aft movement of a vessel? o (A) Sway (B) Surge o (C) Heave o (D) Yaw 34. In the absence of external forces, the center of buoyancy of an inclined vessel is vertically aligned directly below the. o (A) center of flotation o (B) amidships station o (C) geometric center of the waterplane area (D) center of gravity Page 8 of 13

9 35. You have taken another vessel in tow at sea. Which is an indicator that the towing speed is too fast? o (A) The vessels are not in step (B) The catenary comes clear of the water o (C) The towed vessel goes "in irons" o (D) The tow line feels like it is "jumping" when touched 36. A floating vessel will behave as if all of its weight is acting downward through which point? o (A) The center of buoyancy o (B) The center of flotation (C) The center of gravity o (D) The metacenter 37. What is the MOST important consideration when determining how to fight an electrical fire? o (A) The amount of toxic fumes created by the extinguisher o (B) Whether the fire is in machinery or passenger spaces (C) Danger of shock to personnel o (D) Maintaining electrical power 38. What is NOT a function of the steam drum of a marine water-tube boiler? o (A) Serves as a reservoir of boiler feedwater o (B) Holds internal fittings for separation of moisture from steam o (C) Receives saturated steam from the generating tubes (D) Collects steam exhausted from the turbines 39. There is a fire in the crew's quarters of your vessel. Which action should you take FIRST? o (A) Ventilate the quarters as much as possible (B) Close all ventilation to the quarters if possible o (C) Prepare to abandon ship o (D) Attempt to put the fire out yourself before sounding the alarm Page 9 of 13

10 40. What shall be conducted during a fire and boat drill? (A) All watertight doors in the vicinity of the drill shall be operated. o (B) All lifeboat equipment shall be examined. o (C) Fire pumps shall be started and all exterior outlets opened. o (D) All of the above 41. Where is the center of buoyancy located on a vessel? (A) In the geometric center of the displaced volume o (B) In the geometric center of the waterplane area o (C) At the center of gravity of the vessel corrected for free surface effects o (D) At the intersection of the vertical centerline and line of action of the buoyant force 42. If more than one raft is manned after the vessel has sunk, you should take which action? o (A) Go in a different direction in search of land o (B) Spread out to increase the possibility of a search aircraft finding you (C) Tie the rafts together and try to stay in a single group o (D) Reduce the number of rafts by getting as many people as possible into as few rafts as possible 43. The lifeboats on your vessel are stowed on cradles on deck and are handled by sheath-screw boom davits. Which of the following statements about launching a boat is TRUE? (A) The outboard section of the cradle must be released. o (B) The boat should be hoisted a few inches clear of the cradle before cranking out the davits. o (C) The tricing pendants will automatically bring the boat alongside at the embarkation deck. o (D) The inboard gripes should be cast off before the outboard gripes. 44. The two courses of action if the underwater hull is severely damaged are to plug the openings or to take which action? o (A) Dewater the compartment o (B) Ballast to maintain even keel o (C) Secure power to the compartment (D) Establish and maintain flooding boundaries Page 10 of 13

11 45. Which item(s) is/are a 2,000 GT tankship is required to carry? o (A) Two canister type gas masks if such vessel is authorized to carry grade A, B, C or D liquids (B) Two self-contained breathing apparati o (C) One oxygen breathing apparatus with enough lifeline to reach from the open deck to any part of the tanks o (D) Emergency outfits only on an international voyage 46. You are on the beach and want to signal to a small boat in distress that your present location is dangerous and that they should land to the left. How would you indicate this? o (A) Send the letter K by light and point to the left o (B) Fire a green star to the left o (C) Place an orange signal to your left as you signal with a white light (D) Send the code signal S followed by L 47. A class B fire is most successfully fought by which method? (A) Preventing oxygen from reaching the burning material o (B) Using the extinguishing agent to make the burning material fire-resistant o (C) Cooling the burning material below its ignition temperature o (D) Using the extinguishing agent to remove the heat 48. The order of importance in addressing damage control is. (A) control fire, control flooding, repair structural damage o (B) control fire, restore vital services, control flooding o (C) restore vital services, control fire, control flooding o (D) control flooding, control fire, repair structural damage 49. With no environmental forces, what is the center of gravity of an inclined vessel vertically aligned with? o (A) The longitudinal centerline o (B) The original vertical centerline (C) The center of buoyancy o (D) The center of flotation Page 11 of 13

12 50. A crew member has just fallen overboard off your port side. Which action should you take? o (A) Immediately put the rudder over hard right. o (B) Wait until the stern is well clear of the man and then put the rudder over hard right. o (C) Immediately put the engines astern. (D) Immediately put the rudder over hard left. Page 12 of 13

13 National Maritime Center Providing Credentials to Mariners D025DG 5/23/2016 Adapted for testing purposes only Further reproduction prohibited without permission Page 13 of 13