A vessel trawling would display ______．

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• 1Your vessel is at anchor in fog while in international waters． The fog signal of another vessel，apparently underway，has been steadily growing louder and the danger of collision appears to exist．In addition to the normal fog signal，what signal may be used to indicate the presence of your vessel？______．

  A.The danger signal； five or more short and rapid blasts on the whistle

  B.Three blasts on the whistle； one short，one prolonged and one short

  C.Three blasts on the whistle； one prolonged followed by two short

  D.No special signal other than the normal fog signal

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• 2Deviation is caused by ______．

  A.changes in the earth's magnetic field

  B.nearby magnetic land masses or mineral deposits

  C.magnetic influence inherent to that particular vessel

  D.the magnetic lines of force not coinciding with the lines of longitude

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• 3Magnetic heading differs from compass heading by_______．

  A.compass error

  B.true heading

  C.variation

  D.deviation

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• 4A correction for augmentation is included in the Nautical Almanac corrections for ______．

  A.the Sun

  B.the Moon

  C.Venus

  D.None of the above

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• 5Defense 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 days notice

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• 6Sailing vessels are stand-on over power-driven vessels except ______．

  A.in a crossing situation

  B.in a meeting situation

  C.when they are the overtaking vessel

  D.on the inland waters of the PR China

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• 7The ridge and the low are moving ______．

  A.in some direction

  B.in opposite direction

  C.to SE and NW respectively

  D.too fast in the day that marine interests are advised that freezing spray warnings are continued for Belle Isle

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• 8At noontime Tue the wind direction will be______．

  A.S

  B.NE

  C.NW

  D.SW

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• 9It is forecast for Wed that there will be ______．

  A.winds NE 20 to 30 knots

  B.winds SW 15 knots backing to SE 15 to 20

  C.winds NW 20 to 30 knots with occasional showers

  D.mod to strong S winds diminishing to light winds

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• 10On Tue afternoon, there will be ______．

  A.rain

  B.fog

  C.blue skies

  D.showers

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