A.hydraulic steering
B.follow-up steering
C.remote control steering
D.air controlled steering
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A.An expansion valve
B.An evaporator
C.A thermostat
D.A condenser
A.servo-motor
B.swash plate
C.plunger
D.cylinder
A.a change-over chest
B.a head tank
C.a emergency bilge pump
D.an air cooler
A.the hunting gear
B.the rudder stock
C.the rudder controller
D.the feedback unit
A.the control rod
B.the hunting gear
C.the floating ring
D.the tiller arm
最新試題
The general purpose of a heat exchanger is to （）.
A salinity indicator is used to determine the （）.
On tank vessels equipped with power operated cargo tank valves, the type of power operator most commonly used is （）.
Which of the following problems could cause the high pressure cutout switch to shut down the compressor in a refrigeration system?（）
A grease gun is generally used to lubricate a （）.
If the relief valve on the discharge side of a hydraulic pump lifts, the cause could be （）.
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 （）.
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 （）.