A.did work
B.would work well
C.didnt work
D.wouldnt work
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A.as well as
B.as long as
C.rather than
D.other than
A.the oil content in water
B.the water content in fuel oil
C.the water level in bilge well
D.the oil level in bilge well
A.whenever
B.however
C.wherever
D.whether
A.negative displacement type
B.turbine type
C.positive displacement type
D.mixed-flow type
A.well ventilated
B.well clean
C.in good order
D.more room
最新試題
Which of the listed pumps is NOT a positive displacement pump?（）
The major source of chemical contaminants in hydraulic fluid is （）.
A gradual decrease in the discharge pressure of an operating hydraulic pump can be caused by （）.
The rate of heat transfer between the hot and cold fluids passing through a shell-and-tube type heat exchanger will （）.
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 （）.
A salinity indicator is used to determine the （）.
If the head pressure of a reciprocating refrigeration compressor is excessive, （）.
The output volume of a positive fixed displacement pump can be changed only by （）.
An internal bypass is provided on some hydraulic system suction strainers to help reduce the possibility of （）.
A pressure drop through the refrigerant liquid line may cause （）.