A.pressure gradient
B.Coriolis effect
C.aurora borealis
D.ballistic deflection
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A.12 times on each watch
B.When time allows
C.At least once a watch
D.No checking is necessary
A.Container loading
B.Container discharging
C.Stowage planning
D.Container checking
A.inboard diesel engine
B.outboard diesel engine
C.outboard gasoline engine
D.inboard gasoline engine
A.the ship is made fast
B.the ship‟s first line is sent ashore
C.the ship is dredging anchor
D.the ship‟s pilot disembarks
A.determine true bearing and distance between two geographical points
B.determine magnetic compass deviation
C.transform a local datum to the WGS-'84 datum
D.convert "graphical coordinates" to "display coordinates"
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The dew point temperature is（）.
The mean draft of a ship is the draft（）.
Fog is likely to occur when there is little difference between the dew point and the（）.
When the wave period and the apparent rolling period are the same（）.
The circulation around a low pressure center in the Northern Hemisphere is（）.
Bales close to the deckhead should be covered to prevent（）.
The force resulting from the earth’s rotation that causes winds to deflect to the right in the Northern Hemisphere and to the left in the Southern Hemisphere is called（）.
According to the relevant regulation, lifeboat should be powered by（）.
What is it called when it is possible to ignite the vapour above the oil?（）
Despite the rising importance and great convenience of the gyrocompass,the magnetic compass still retain its importance because of its（）.