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
Which of the following shall not the officers in charge of the navigational watch do?（）
Your vessel is docking, but not yet alongside. Which line will be the most useful when maneuvering the vessel alongside the pier?（）.
Fog is likely to occur when there is little difference between the dew point and the（）.
（）is the act of allocating space to containers on board of a container ship in the order of the discharge ports.
Where would you find information about the time of high tide at a specific location on a particular day of the year?（）
（）is on the panel of radar.
（）is where the crew eat their meals.
When steering by autopilot,how often should the steering be checked?（）
The helm command PORT TWENTY means（）.
Despite the rising importance and great convenience of the gyrocompass,the magnetic compass still retain its importance because of its（）.