A.welcome
B.admitted in some special sea areas
C.prohibited
D.acceptable
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A.Oil Record Book Part Ⅰ
B.Oil Record Book Part Ⅱ
C.Oil Record Book Part Ⅰ or Part Ⅱ
D.Oil Record Book Part Ⅰ and Part Ⅱ
A.periodically
B.occasionally
C.chronologically
D.additionally
A.at which/to which
B.from which/at which
C.to which/from which
D.in which/on which
A.brake capabilities
B.reversing capabilities
C.maneuvering capabilities
D.acceleration capabilities
A.28 seconds；7 knots
B.28 seconds；14 knots
C.60 seconds；7 knots
D.60 seconds；14 knots
最新試題
Low compressor head pressure in a refrigeration system can be caused by（）.
If you are given the job of adding hydraulic fluid to a mooring winch, and are not certain as to the type of fluid to use, you should （）.
The usual symptoms of cavitation in a centrifugal pump is （）.
On tank vessels equipped with power operated cargo tank valves, the type of power operator most commonly used is （）.
If the suction pressure at the refrigeration compressor is below normal, the cause can be（）.
A gradual decrease in the discharge pressure of an operating hydraulic pump can be caused by （）.
A pressure drop through the refrigerant liquid line may cause （）.
Which of the following statements is correct concerning heat transfer?（）
When the steering gear is in operation, you should （）.
An excessive charge of refrigerant in an air-cooled refrigeration system can cause （）.