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

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• 1A vessel trawling would display ______．

  A.a black ball

  B.a basket

  C.a double cone，point to point

  D.none of the above

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• 2Your 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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• 3Deviation 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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• 4Magnetic heading differs from compass heading by_______．

  A.compass error

  B.true heading

  C.variation

  D.deviation

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• 5A 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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• 6The 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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• 7At noontime Tue the wind direction will be______．

  A.S

  B.NE

  C.NW

  D.SW

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• 8It 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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• 9On Tue afternoon, there will be ______．

  A.rain

  B.fog

  C.blue skies

  D.showers

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• 10______ are reprinted in the Annual Summary of Notices to Mariners.

  A.The Sailing Directions

  B.The corrections to Sailing Directions

  C.The effective corrections to Notices to Mariners

  D.The Weekly Edition

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