Most propellers on merchant vessels are constructed of_____．

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• 1Foam extinguishes a fire by ______．

  A.shutting off the air supply

  B.cooling the fuel to below ignition temperature

  C.dispersing(使分散) the fuel

  D.removing the source of ignition

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• 2Ships are also required to carry a(n) _______ to mitigate the effects of environmental damage in the event of a pollution incident by ISM code and MARPOL convention.

  A.Oil Record Book

  B.Cargo Record Book

  C.Muster List

  D.Shipboard Oil Pollution Emergency Plan

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• 3Which of the following best indicates how many tons of cargo a ship can carry？

  A.Bale cubic

  B.Deadweight

  C.Gross tonnage

  D.Net tonnage

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• 4The turning circle of a vessel is the path followed by the ______.

  A.center of gravity

  B.outermost part of the ship while making the circle

  C. bow

  D.tipping center

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• 5The following ______is a standard phrase．

  A.You may enter fairway

  B.You should enter fairway

  C.ANSWER．It is permitted to enter fairway

  D.You could enter fairway

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• 6Damage to ship’s fittings caused by stevedore's negligence often happens．Therefore，the stevedores ______ the cost of the damage repaired afterwards．

  A.should hold responsible for

  B.should be held responsible for

  C.should be free of

  D.should be bearable of

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• 7Your vessel is equipped with totally enclosed lifeboats．Which statement is TRUE when the boat is enveloped in flames、

  A.The ventilators will automatically close by the action of fusible links

  B.The motor takes its air supply from outside the lifeboat to prevent asphyxiation（窒息） of the crew

  C.A water spray system to cool the outside of the boat is operated by a high-volume manual pump

  D.An air tank will provide about ten minutes of air for the survivors and the engine

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• 8A fire starts on your vessel while refueling．You should FIRST ______．

  A.stop the ventilation

  B.sound the general alarm

  C.determine the source of the fire

  D.attempt to extinguish the fire

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• 9At the required fire drill conducted aboard a vessel，all persons must report to their stations and demonstrate their ability to perform the duties assigned to them ______．

  A.by the tool pusher

  B.in the station bill

  C.by the person conducting the drill

  D.at the previous safety meeting

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• 10The difference in tones between the displacement in salt water at summer load waterline and the light weight of the vessel is ______．

  A.deadweight

  B.gross tonnage

  C.net tonnage

  D.displacement

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