A.the hunting gear
B.the rudder stock
C.the rudder controller
D.the feedback unit
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A.the control rod
B.the hunting gear
C.the floating ring
D.the tiller arm
A.air cooler
B.economizer
C.injector
D.air blower
A.to pump off
B.being pumped
C.pumping out
D.it pumping out
A.reciprocating pump
B.gear pump
C.centrifugal pump
D.vane pump
A.reciprocating
B.hydraulic
C.turbine
D.vane
最新試題
When the steering gear is in operation, you should （）.
The amount of fluid friction or internal friction inherent in a mineral lubricating oil is reflected as a measure of its （）.
The control mode in which the final control element is moved from one of two flexed positions to the other is known as （）.
If the head pressure of a reciprocating refrigeration compressor is excessive, （）.
An increasing head pressure in a refrigeration system, without any corresponding change in the cooling water inlet temperature, would probably be caused by （）.
The output volume of a positive fixed displacement pump can be changed only by （）.
Which of the following statements is correct concerning heat transfer?（）
Thermostatic expansion valves can be adjusted for （）.
If the relief valve on the discharge side of a hydraulic pump lifts, the cause could be （）.
Heavy wear in a particular area of the inner circumference of a packing ring may be caused by （）.