What is a requirement for any action taken to avoid collision、

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• 1Before switching on gyro-compass，you should make sure that the power supply on board is ______．

  A.high or low

  B.AC or DC

  C.strong or weak

  D.on or off

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• 2A compass card without north-seeking capability that is used for relative bearings is a(n) ______．

  A.bearing circle

  B.pelorus

  C.bearing bar

  D.alidade

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• 3To obtain accuracy in fixing by DF，______ and three stations should be used．

  A.parallel bearings

  B.long-range bearings

  C.short-range bearings

  D.cross bearings

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• 4Calibration Stations give special transmissions for the calibration of ship's ______．

  A.gyro-compass

  B.marine radar

  C.DF

  D.navigational satellite

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• 5The system will accept a harbor map which is incorrect，therefore the operator must exercise caution in harbor selection．

  A.be considered

  B.be prudent

  C.be bold enough

  D.be carelessness

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• 6When two power-driven vessels are crossing，which vessel is the stand-on vessel、

  A.The vessel which is to starboard of the other vessel

  B.The vessel which is to port of the other vessel

  C.The larger vessel

  D.The vessel that sounds the first whistle signal

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• 7The rules require that a stand-on vessel SHALL take action to avoid collision when she determines that ______．

  A.risk of collision exists

  B.the other vessel will cross ahead of her

  C.the other vessel is not taking appropriate action

  D.collision cannot be avoided by the give-way vessel's maneuver alone

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• 8The deep-sea liners _______．

  A.carry mainly containerized cargo

  B.carry mainly conventional cargo

  C.offer a daily or weekly service for passengers and vehicles

  D.sail across channels and narrow seas

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• 9The Liners _______．

  A.always sail full

  B.sail regularly even not full

  C.always sail in ballast

  D.will not sail if not full

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• 10A list of the arrival and departure dates of liners _______．

  A.will be published weekly

  B.will be published when they sail, whether full or not, from Europe to North America and to the Far East

  C.will not be published even they sail fully loaded

  D.is published prior to their departure

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