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

试卷相关题目

• 1A 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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• 2To 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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• 3Calibration 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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• 4The 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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• 5Your radar is set on a true motion display．Which of the following will NOT appear to moveacross the PPI scope、

  A.Echoes from a buoy

  B.Own ship's marker

  C.Echo from a ship on the same course at the same speed

  D.Echo from a ship on a reciprocal course at the same speed

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• 6What is a requirement for any action taken to avoid collision、

  A.When in sight of another vessel，any action taken must be accompanied by sound signals

  B.The action taken must include changing the speed of the vessel

  C.The action must be positive and made in ample time

  D.All of the above

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• 7When 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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• 8The 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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• 9The 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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• 10The 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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