A.reciprocating
B.diffuser
C.turbine
D.vane
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A.lower than
B.higher than
C.below
D.equal to
A.fire-tubes
B.furnaces
C.down-comers
D.soot-blowers
A.The domestic water
B.Bilge water
C.Oil transfer
D.The ballast
A.A cut-off lever
B.A swivel block
C.A cross-head
D.A driving gear
A.the piston rod
B.the tiller arm
C.the connecting rod
D.the rudder
最新試題
The major source of chemical contaminants in hydraulic fluid is （）.
Low compressor head pressure in a refrigeration system can be caused by（）.
If the head pressure of a reciprocating refrigeration compressor is excessive, （）.
Heavy wear in a particular area of the inner circumference of a packing ring may be caused by （）.
A gradual decrease in the discharge pressure of an operating hydraulic pump can be caused by （）.
Who is responsible for ensuring that someone is assigned to close the watertight doors in an emergency?（）
A salinity indicator is used to determine the （）.
When the steering gear is in operation, you should （）.
An increasing head pressure in a refrigeration system, without any corresponding change in the cooling water inlet temperature, would probably be caused by （）.
If the viscosity of the liquid being transferred remains constant as the discharge pressure increases, the rotary pump （）.