Mean high water is the average height of ______．

试卷相关题目

• 1A line connecting all possible positions of your vessel at any given time is a ______．

  A.longitude line

  B.isogonic lines

  C.latitude line

  D.line of position

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• 2Admiralty Notices to Mariners，containing important information for the mariners and enabling them to keep their charts and books corrected for the latest information，are issued daily and published in ______．

  A.Weekly Editions

  B.Quarterly Editions

  C.Annual Editions

  D.Monthly Editions

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• 3Bearings are true reckoned ______ in Admiralty Charts．

  A.clockwise from 000 to 359 degrees

  B.clockwise from 359 to 000 degrees

  C.anti-clockwise from 000 to 359 degrees

  D.anti-clockwise from 359 to 000 degrees

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• 4Wind direction may be determined by observing all of the following EXCEPT ______．

  A.low clouds

  B.waves

  C.whitecaps

  D.swells

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• 5It is predicted that heavy rains are ______ to flood the harbor and its vicinity in a few days．

  A.frightening

  B.threatening

  C.scattering

  D.warning

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• 6On a chart，the characteristic of the light on a lighthouse is shown as flashing white with a red sector．The red sector ______．

  A.indicates the limits of the navigable channel

  B.indicates a danger area

  C.is used to identify the characteristics of the light

  D.serves no significant purpose

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• 7Attention 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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• 8Navigational 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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• 9Which 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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• 10Chart legends which indicate a conspicuous landmark are printed in ______．

  A.capital letters

  B.italics

  C.boldface print

  D.underlined letters

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