U.S.C.G. Merchant Marine Exam Master Less than 500-1600 … · 2019-09-11 · o (A) It will...

National Maritime Center Serving Our Nation’s Mariners

U.S.C.G. Merchant Marine Exam

Master Less than 500-1600 Gross Registered Tons

Q121 Deck Safety

(Sample Examination)

of 18 Q121 Deck Safety

8/29/2019

Q121 Deck Safety U.S.C.G. Merchant Marine Exam Master Less than 500-1600 Gross Registered Tons Illustrations: 2

Choose the best answer to the following Multiple Choice Questions.

1. What is NOT a function of the steam drum of a marine water-tube boiler?

o (A) Serves as a reservoir of boiler feed water • (B) Collects steam exhausted from the turbines o (C) Receives saturated steam from the generating tubes o (D) Holds internal fittings for separation of moisture from steam

If choice B is selected set score to 1.

2. How should the number "3" be pronounced when spoken on the radiotelephone?

o (A) BEES-SOH-THREE • (B) TAY-RAH-TREE o (C) TRIC-THREE o (D) NUM-ERL-THREE


3. Which is TRUE if passengers are on board when an abandon ship drill is carried out?

o (A) The passengers should stay out of the way and do what they want • (B) The passengers should take part in the drill o (C) Passenger should go to their quarters during drills o (D) The passengers should just watch


4. Which term defines the lowest temperature required to cause self-sustained combustion of a substance independent of any outside source of ignition?

o (A) Explosive range o (B) Flash point • (C) Ignition temperature o (D) Combustion temperature

If choice C is selected set score to 1.

5. Which term is used to describe the horizontal port or starboard movement of a vessel?

o (A) Yaw o (B) Surge • (C) Sway o (D) Heave



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Q121 Deck Safety U.S.C.G. Merchant Marine Exam Master Less than 500-1600 Gross Registered Tons Illustrations: 2 6. In illustration D033DG below, which letter indicates the garboard strake?

o (A) A o (B) B o (C) G • (D) H

If choice D is selected set score to 1.

7. What would be the result of physical exertion on the part of a person who has fallen into cold water?

o (A) It will increase survival time in the water • (B) It will increase the rate of heat loss from the body o (C) It will decrease exposure of the body surface to cold water o (D) It will increase the water temperature between the body and layers of clothing


8. 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 tensile stress on main deck o (B) The vessel is sagging with compressive 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


9. You are fighting a fire in a watertight compartment using hoses and salt water. Why may the stability of the vessel be reduced?

o (A) Due to progressive downflooding o (B) Reduction of water in the storage tanks • (C) An increase in free surface which reduces the metacentric height o (D) A reduction of KG to the minimum allowable


10. What is an advantage of water fog or water spray over a straight stream of water in fighting an oil fire?

o (A) It requires less water to remove the same amount of heat. o (B) It gives more protection to fire fighting personnel. o (C) It has a smothering effect on the fire. • (D) All of the above



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Q121 Deck Safety U.S.C.G. Merchant Marine Exam Master Less than 500-1600 Gross Registered Tons Illustrations: 2 11. In illustration D016SA below, what number indicates the frapping line?

o (A) 1 • (B) 2 o (C) 3 o (D) 4


12. Which factor has the greatest effect on the value of the free surface correction?

• (A) The width of the tank o (B) The specific gravity of the liquid in the tank o (C) The length of the tank o (D) The draft of the vessel

If choice A is selected set score to 1.

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?

• (A) Expanding square o (B) Track crawl o (C) Parallel track search o (D) Sector search


14. 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) From above the seat o (B) Direction is unimportant • (C) From below the seat o (D) Depends on seat configuration


15. A vessel aground may have negative GM since the __________.

o (A) virtual rise of G is directly proportional to the remaining draft o (B) lost buoyancy method is used to calculate KM, and KB is reduced • (C) displacement lost acts at the point where the ship is aground o (D) decrease in KM is equal to the loss of draft



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Q121 Deck Safety U.S.C.G. Merchant Marine Exam Master Less than 500-1600 Gross Registered Tons Illustrations: 2 16. Landing a lifeboat through surf should only be done if absolutely necessary. What should be done

with the lifeboat rudder if this type of landing is unavoidable?

o (A) the rudder should be unshipped, utilizing the sea anchor to provide better control o (B) the rudder should remain in position, it can aid in the propulsion of the lifeboat o (C) the rudder should remain in position, it provides the best control of the lifeboat • (D) the rudder should be unshipped, a steering oar will provide better maneuverability


17. When attempting to enter a compartment containing a fire, which method of applying water is best?

o (A) High-velocity fog stream directed toward the overhead • (B) Sweeping the compartment with a fog stream o (C) Straight stream directed into the center of the fire o (D) Solid stream directed toward the overhead


18. What are the symptoms of a fractured back?

o (A) Leg cramps in the muscles in one or both legs o (B) Vomiting and involuntary urination or bowel movement o (C) Pain and uncontrolled jerking of the legs and arms • (D) Pain at the site of the fracture and possible numbness or paralysis below the injury


19. How do you determine the weight of the vessel that is supported by the ground when a vessel has run aground?

o (A) This requires extensive calculation and is usually performed only by a naval architect not by a ship's officer.

o (B) Determine the point where aground and the draft at that point, then calculate it using the grounding formula.

• (C) Use the hydrostatic tables and enter with the mean draft before grounding and the mean draft after grounding.

o (D) Use the inclining experiment formula and substitute the change of trim for the angle of list.



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Q121 Deck Safety U.S.C.G. Merchant Marine Exam Master Less than 500-1600 Gross Registered Tons Illustrations: 2 20. A magnesium fire is classified as class __________.

o (A) A o (B) B o (C) C • (D) D


21. When collecting condensation for drinking water, which is TRUE?

o (A) It should be strained through a finely woven cloth • (B) A sponge used to mop up and store condensation must be kept salt free o (C) Chlorine tablets should be used to make it drinkable o (D) Only condensation on the bottom of the canopy should be collected


22. Which type of EPIRB must each ocean-going ship carry?

o (A) Class A o (B) Class B • (C) Category 1 o (D) Class C


23. A long ton is __________.

o (A) 1,000 pounds o (B) 2,000 pounds • (C) 2,240 pounds o (D) 2,400 pounds


24. The wooden plug inserted in the vent of a damaged tank should be removed if you are going to __________.

• (A) pump from the damaged tank o (B) abandon ship o (C) fight a fire o (D) use the crossover system



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Q121 Deck Safety U.S.C.G. Merchant Marine Exam Master Less than 500-1600 Gross Registered Tons Illustrations: 2 25. For the purpose of training and drills, if reasonable and practicable, how frequently should rescue

boats be launched with their assigned crew?

• (A) Once a month o (B) Twice a year o (C) Once a year o (D) Once a week


26. When a ship is abandoned and there are several liferafts in the water, which task must be done to aid in your rescue?

o (A) Transfer all the injured to one raft o (B) Transfer all supplies to one raft and post a guard o (C) Separate the rafts by drifting away to increase chances of detection • (D) Secure the rafts together to keep them from drifting apart


27. Which extinguishing agent will cool down a heated bulkhead in the least amount of time?

o (A) Dry chemical • (B) Water fog or spray o (C) Steam o (D) Water stream


28. 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) Apply RPM to one propeller • (B) Sound all tanks o (C) Back the engines full astern o (D) Pump out all double bottoms


29. What are symptom(s) of a ruptured appendix?

• (A) Muscle tenseness in almost the entire abdomen o (B) Extreme sweating and reddening skin o (C) Dilated pupils and shallow breathing o (D) Diarrhea and frequent urination



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Q121 Deck Safety U.S.C.G. Merchant Marine Exam Master Less than 500-1600 Gross Registered Tons Illustrations: 2 30. You hear the general alarm and ship's whistle sound for over 10 seconds. What does this signal

mean?

o (A) Dismissal from fire and emergency stations o (B) Man overboard • (C) Fire and emergency o (D) Abandon ship


31. If the metacentric height is small, which is TRUE of the vessel?

• (A) The vessel will be tender o (B) The vessel will have large angles of roll o (C) The vessel will be stiff o (D) The vessel will have a quick and rapid motion


32. When does a cylinder in a two cycle engine experience combustion?

o (A) Every fourth stroke o (B) Twice each crankshaft revolution o (C) Every other crankshaft revolution • (D) Once each crankshaft revolution


33. While communicating with a shore station concerning an injured female, your message should indicate the subject's age is 32. Which code would your message contain?

o (A) MAO 32 o (B) MAJ 32 o (C) MAL 32 • (D) MAK 32


34. Which action would you take to get low-velocity fog from an all-purpose nozzle?

• (A) Attach an applicator to the nozzle in place of the bronze nozzle tip o (B) Attach an applicator to the solid stream outlet on the nozzle o (C) Attach the bronze nozzle tip to the fog outlet of the nozzle o (D) Simply move the handle to the vertical position on the nozzle



8/29/2019

Q121 Deck Safety U.S.C.G. Merchant Marine Exam Master Less than 500-1600 Gross Registered Tons Illustrations: 2 35. How does foam extinguish an oil fire?

o (A) By cooling the oil below the ignition temperature o (B) By increasing the weight of the oil o (C) By removing the fuel source from the fire • (D) By excluding the oxygen from the fire


36. Which is the term given to the joint formed when two steel plates are placed end-to-end?

o (A) Bevel o (B) Bond o (C) Seam • (D) Butt


37. You must shore up the collision bulkhead due to solid flooding forward. The bulkhead approximates an inverted triangle. Where should the center of pressure of the shores on the bulkhead be located?

o (A) Evenly over the surface of the bulkhead o (B) At the bottom of the bulkhead o (C) Approximately two-thirds of the way up the bulkhead • (D) Approximately halfway up the bulkhead


38. Why are diesel engines considered safer than gasoline engines?

o (A) They operate at a lower speed o (B) They can be easily reversed o (C) They are more heavily built • (D) The fuel used is less volatile


39. Preventer bars are fitted on lifeboat releasing gear to prevent what from happening?

o (A) The operation of the release lever until the boat is waterborne • (B) Accidental unhooking when the falls become slack o (C) The falls from unhooking if the releasing gear is operated accidentally o (D) The falls from rehooking after they have been released



8/29/2019

Q121 Deck Safety U.S.C.G. Merchant Marine Exam Master Less than 500-1600 Gross Registered Tons Illustrations: 2 40. What should you do if you have transmitted a distress call a number of times on channel 16 and

have received no reply?

o (A) Key the microphone several times before transmitting again. • (B) Repeat the message using any other channel on which you might attract attention. o (C) Report the problem to the head electrician. o (D) Turn up the volume on the receiver before transmitting again.


41. What is the minimum number of deck officers, able seaman or certificated persons required to command each lifeboat on a vessel in ocean service?

• (A) Two o (B) Three o (C) Four o (D) Five


42. Where a propeller shaft passes through the hull, which device prevents water from entering the hull?

o (A) stop-water • (B) stuffing box o (C) propeller boss o (D) sea cock


43. While operating off the coast of Portugal, a seaman is injured. What indicator should be used in a message requesting medical advice from a Portuguese station?

o (A) MEDICAL RADIO • (B) XXX RADIOMEDICAL o (C) DH MEDICO o (D) PORT HEALTH


44. 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



8/29/2019

Q121 Deck Safety U.S.C.G. Merchant Marine Exam Master Less than 500-1600 Gross Registered Tons Illustrations: 2 45. An unstable upright equilibrium position on a vessel means that the metacenter is in which location?

o (A) On the longitudinal centerline • (B) Lower than the center of gravity o (C) At the same height as the center of gravity o (D) Higher than the baseline


46. 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) When over 200 miles from a port in the danger zone, you should not darken ship. o (C) If on a coastwise voyage along the east coast of the U.S., you should put into the nearest

port. • (D) You should attempt to submit an AMVER report to NSA.


47. Which defines the function of a spark arrestor?

• (A) Prevents sparks from getting out of an engine's exhaust system o (B) Utilized to secure covers on ullage openings o (C) Grounds static electricity reducing chance of explosion o (D) It keeps sparks from falling into an open tank


48. Which is TRUE concerning a fuel-air mixture below the lower flammable limit?

• (A) The mixture is too lean to burn o (B) The mixture is too cool to burn o (C) The mixture is too dense to burn o (D) The mixture is too rich to burn


49. 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) To the base of the foremast o (B) To the forward part of the deckhouse • (C) To the forwardmost bitts o (D) At the stern



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Q121 Deck Safety U.S.C.G. Merchant Marine Exam Master Less than 500-1600 Gross Registered Tons Illustrations: 2 50. While underway in thick fog you are on watch and hear the cry "man overboard". Which type of

maneuver should you make?

o (A) figure eight turn o (B) Round turn o (C) Racetrack turn • (D) Williamson turn


51. What term indicates an inward curvature of the ship's hull above the waterline?

o (A) Camber o (B) Flare • (C) Tumble home o (D) Deadrise


52. How should a minor heat burn of the eye be treated?

• (A) Gently flooding with water o (B) Warming the eye with moist warm packs o (C) Mineral oil drops directly on the eye o (D) Laying the person flat on his back


53. In the first 24 hours after abandoning a vessel, water should be given only to which personnel?

o (A) Those that are thirsty o (B) Those that are awake • (C) Those that are sick or injured o (D) Those that are wet


54. Where there are multiple accident victims, which type of injury should be the first to receive emergency treatment?

o (A) Burns o (B) Major multiple fractures o (C) Eye injuries • (D) Severe shock



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Q121 Deck Safety U.S.C.G. Merchant Marine Exam Master Less than 500-1600 Gross Registered Tons Illustrations: 2 55. 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 o (C) Maintaining electrical power • (D) Danger of shock to personnel


56. Which term describes the strengthening of damaged bulkheads by using wood or steel?

o (A) Bracing • (B) Shoring o (C) Battening o (D) Blocking


57. You have a large, broken-down vessel in tow with a wire rope and anchor cable towline. Both vessels have made provision for slipping the tow in an emergency; however, unless there are special circumstances __________.

o (A) they should slip simultaneously • (B) the towing vessel should slip first o (C) the vessel towed should slip first o (D) either vessel may slip first


58. What is the function of wearing rings found on some centrifugal pumps?

o (A) Seal pump shaft against entry of air • (B) Isolate the outlet side from the inlet side o (C) Absorb erosion of high-velocity discharge stream o (D) Dampen the turbulent discharge flow


59. Distress signals may be __________.

o (A) smoke signals o (B) sound signals o (C) red flares • (D) Any of the above



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Q121 Deck Safety U.S.C.G. Merchant Marine Exam Master Less than 500-1600 Gross Registered Tons Illustrations: 2 60. Which term describes the horizontal fore or aft motion of a vessel?

o (A) Sway o (B) Roll o (C) Pitch • (D) Surge


61. Which is an indication of reserve buoyancy?

o (A) Rolling period o (B) Righting moment o (C) Metacentric height • (D) Freeboard


62. Which channel has been designated for on-scene communications in GMDSS?

o (A) 2187.5 • (B) 16 or 2174.5 o (C) 70 o (D) 24


63. What is the purpose of a check valve?

• (A) Permits flow in one direction only o (B) Passes air but not liquid o (C) Passes liquid but not air o (D) Regulates liquid flow


64. When carrying out a parallel track search pattern, the course of the search units should normally be which of the following?

o (A) Downwind • (B) In the same direction as the anticipated drift o (C) Perpendicular to the line of anticipated drift o (D) In the opposite direction of the anticipated drift



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Q121 Deck Safety U.S.C.G. Merchant Marine Exam Master Less than 500-1600 Gross Registered Tons Illustrations: 2 65. The result of two forces acting in opposite directions and along parallel lines, is an example of what

type of stress?

o (A) Tensile • (B) Shear o (C) Compression o (D) Strain


66. When should the control of flooding of your vessel be addressed?

o (A) Following restoration of vital services o (B) First o (C) Only if a threat exists • (D) Following control of fire


67. When two generators are operating in parallel, what will happen if one engine driving a generator shuts down?

o (A) The generator that's still running will motorize. o (B) The running generator's circuit breaker will immediately trip on overload. o (C) Both generators will immediately shut down. • (D) The stalled generator's circuit breaker will trip on reverse power.


68. Transverse stability calculations require the use of which information?

• (A) Hydrostatic curves o (B) General arrangement plans o (C) Cross-sectional views of the vessel o (D) Hog or sag calculations or tables


69. In which Sea Area must a compulsory vessel carry either INMARSAT or HF SITOR equipment?

o (A) This equipment must be carried at all times at sea regardless of where the vessel will be operating.

o (B) HF SITOR equipment partially satisfies the carriage requirement for vessels operating in Sea Area A3, but INMARSAT equipment must be carried to satisfy the requirement when the vessel is in Sea Area A4.

o (C) This equipment satisfies in full the carriage requirement for vessels operating in Sea Area A2. • (D) This equipment partially satisfies the carriage requirement for vessels operating in Sea Area

A3.



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Q121 Deck Safety U.S.C.G. Merchant Marine Exam Master Less than 500-1600 Gross Registered Tons Illustrations: 2

70. What is the lifesaving signal indicating "You are seen - Assistance will be given as soon aspossible"?

o (A) Vertical motion of a white light or flareo (B) Firing of a green star signalo (C) Vertical motion of white flags• (D) None of the above



8/29/2019

National Maritime Center

Serving Our Nation's Mariners

8/3/2018

D033DG

Adapted for testing purposes only from Hull Maintenance Technician

NAVEDTRA 14119

Further reproduction prohibited without permission of 18 Q121 Deck Safety

National Maritime Center

Serving Our Nation’s Mariners

11/8/2018

Adapted for testing purposes only from Water Survival Manual

Copyright © 1991 by Seafarers Harry Lundeberg School of Seamanship

Further reproduction prohibited without permission

D016SA


U.S.C.G. Merchant Marine Exam Master Less than 500-1600 … · 2019-09-11 · o (A) It will...

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