The issue of Notices to Mariners of charts and these aids(Radar beacons)may be delayed until such time as they are assessed to be ______．

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• 1A weather forecast states that the wind will commence backing．In the Northern Hemisphere(北半球), this would indicate that it will ______．

  A.shift in a clockwise manner

  B.decrease in velocity

  C.continue blowing from the same direction

  D.shift in a counterclockwise manner

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• 2Chart legends which indicate a conspicuous landmark are printed in ______．

  A.capital letters

  B.italics

  C.boldface print

  D.underlined letters

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• 3Which statement is true of the Uniform Lateral System of Buoyage？

  A.It employs top marks

  B.Lighted buoys have the same shape as unlighted buoys

  C.The numbering or lettering of fairway buoys is optional

  D.All of the above

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• 4Navigational charts are subject to frequent changes，the important ones of which are promulgated by ______．

  A.Admiralty Notices to Mariners

  B.Mariner's Handbook

  C.Catalogue

  D.Sailing Directions

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• 5Attention is ______ the advice on the use of charts in The Mariner's Handbook Chapter 3，Section 1．

  A.fixed to

  B.needed for

  C.pushed to

  D.drawn to

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• 6______ chart 3994，positions read from this chart should be shifted 0．03 minutes Northward．

  A.To consider

  B.To check

  C.To examine

  D.To agree with

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• 7The Pilotage-quarantine anchorage， ______ between Damen Dao and Qingshan Dao，is defined by the lines ______ the given points．

  A.situated／connected

  B.situated／connecting

  C.situating／connected

  D.situating／connecting

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• 8On no account can they cut it _______ it be fouled．

  A.would

  B.shall

  C.should

  D.do

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• 9A vessel's position should be plotted using bearings of ______．

  A.fixed objects on shore

  B.buoys at a distance

  C.buoys close by

  D.All of the above

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• 10In order to insure that the racon signal is visible on your 3 cm radar，the ______．

  A.10 cm radar should be placed on standby or turned off

  B.gain control should be turned to maximum

  C.radar should be stabilized，head up

  D.rain clutter control should be off but，if necessary，may be on low

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