A.the chain is not upright
B.the chain is tight
C.the chain is upright
D.the chain is slack
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A.pay away the chain
B.take in the chain
C.check up the chain
D.take a strain on the chain
A.high winds
B.high overcast clouds
C.calm or light winds
D.fog or steady rain
A.sound the danger signal
B.when taking action, make only course changes
C.avoid altering course toward a vessel abaft the beam
D.All of the above
A.smaller scales
B.larger scales
C.smaller scales and larger scales
D.moderate scales
A.steady, constant winds
B.frequent rain showers and thunderstorms
C.steep pressure gradients
D.low relative humidity
最新試題
When the wave period and the apparent rolling period are the same（）.
（）is where the crew eat their meals.
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（）.
Fog is likely to occur when there is little difference between the dew point and the（）.
A tide is called diurnal when（）.
The circulation around a low pressure center in the Northern Hemisphere is（）.
The ISM code is part of（）.
Which of the following is not a form of precipitation?（）
Full details of all lights and fog signals are shown on（）.
Your vessel is docking, but not yet alongside. Which line will be the most useful when maneuvering the vessel alongside the pier?（）.