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

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• 1Defense plans may cause the operation of electronic aids to navigation to be suspended with ______.

  A.no notice

  B.one day's notice

  C.a week's notice

  D.thirty (30) days notice

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• 2The abbreviation PPI in the Sperry Collision Avoidance System means ______．

  A.plan position indicator

  B.plain position indicator

  C.plane position indication

  D.policy proof of interest

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• 3I have pleasure in informing you that all safety equipment is in ______ working order．

  A.full

  B.care

  C.intentional

  D.reasonable

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• 4In determining if risk of collision exists，such risk may sometimes exist even when an appreciable bearing change is evident，particularly when approaching ______．

  A.very large vessel

  B.a long tow

  C.a vessel at close range

  D.all A，B and C

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• 5Before sailing，mariners on duty shall check the headings of magnetic compass by comparison with ______．

  A.ship's clock

  B.engine movement recorder

  C.repeaters

  D.navigation lights

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• 6The annual change in ______ is 0.2 degree east in this water area．

  A.marine insurance

  B.magnetic variation

  C.maritime accident

  D.mean high water

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• 7The maximum draft to which a vessel can legally be submerged is indicated by the ______.

  A.Loadline mark

  B.Certificate of Inspection

  C.Station Bill

  D.Tonnage mark

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• 8Two vessels meeting in a head- on situation are directed by the Rules to ______.

  A.alter course to starboard and pass port to port

  B.alter course to port and pass starboard to starboard

  C.decide on which side the passage will occur by matching whistle signals

  D.slow to bare steerageway

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• 9You are watching another vessel approach and her compass bearing is not changing. This means that ______.

  A.you are the stand-on vessel

  B.a risk of collision exists

  C.a special circumstances situation exists

  D.the other vessel is dead in the water

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• 10Which craft is a power-driven vessel under the Rules of the Road、 ______.

  A.An auxiliary sailing vessel，using her engine

  B.A canoe propelled by a small outboard motor

  C.A trawler on her way to the fishing grounds

  D.All of the above

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