航海英语【二三副甲类】题库

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The apparent wind's speed can be zero when the ship navigates at sea, but only when two conditions a...

The apparent wind's speed can be zero when the ship navigates at sea, but only when two conditions are present. One condition is that the true wind ______.
  • A.must be from dead ahead
  • B.speed must be zero
  • C.must be from dead astern
  • D.must be on the beam
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1 单选题 1分
The most important principle in the cargo stowage is ______．
  • A.to avoid the rearrangement of the cargo loaded on board
  • B.to ensure the safety of the ship and cargo
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  • D.to prevent the spontaneous combustion of the coal and grain
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3 单选题 1分
Periodic publications notifying changes in，or additions to，previously published navigational data are _____.
  • A.Supplements
  • B.Annual Summary
  • C.Navigational Warnings
  • D.Notices to Mariners
4 单选题 1分
Which one of the followings is correct regarding the use of gyrocompass?
  • A.Gyrocompass does not have to be started before sailing.
  • B.Gyrocompass must be stopped when vessel alongside a berth.
  • C.Gyrocompass needs checking from time to time.
  • D.Gyrocompass is not influenced by the latitude and ship's motion.
5 单选题 1分
ECDIS must be able to perform all of the following EXCEPT ______.
  • A.determine true bearing and distance between two geographical points
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  • C.transform a local datum to the WGS-'84 datum
  • D.convert "graphical coordinates" to "display coordinates"
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