At 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 ______．

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• 1A 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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• 2Your 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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• 3Damage 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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• 4Most propellers on merchant vessels are constructed of_____．

  A.manganese bronze

  B.cast iron

  C.mild steel

  D.improved plow steel

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• 5Foam 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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• 6The 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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• 7By regulation，cargo tanks must be inert before and during what operation、

  A.Stripping

  B.Loading

  C.Cleaning

  D.Crude oil washing

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• 8You should do a ______ check to all of the cargo before shipment．

  A.though

  B.through

  C.thorough

  D.thoroughly

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• 9Chafing gear（防摩擦装置） is used to ______．

  A.anchor the boat

  B.pick up heavy loads

  C.protect fiber rope from abrasion

  D.strengthen mooring lines

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• 10TO EVACUATE A VESSEL FROM CREW AND PASSENGERS FOLLOWING A DISTRESS means ______．

  A.abandon vessel

  B.drift

  C.beach to

  D.assembly station

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