A.lower than
B.higher than
C.as much as
D.the same as
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A.overboard
B.a bilge well
C.a slop tank
D.a hot well
A.by trial and error
B.by and large
C.automatically
D.very easily
A.catch plates
B.dampers
C.regulating valves
D.fans
A.few
B.little
C.a little
D.less
A.pressure
B.temperature
C.density
D.volume
最新試題
An internal bypass is provided on some hydraulic system suction strainers to help reduce the possibility of （）.
The amount of fluid friction or internal friction inherent in a mineral lubricating oil is reflected as a measure of its （）.
A salinity indicator is used to determine the （）.
Which of the following statements is correct concerning heat transfer?（）
Which of the listed pumps is NOT a positive displacement pump?（）
On tank vessels equipped with power operated cargo tank valves, the type of power operator most commonly used is （）.
If the head pressure of a reciprocating refrigeration compressor is excessive, （）.
Pitting in the suction areas of a centrifugal pump bronze impeller is usually caused by （）.
Who is responsible for ensuring that someone is assigned to close the watertight doors in an emergency?（）
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 （）.