海船船员考试
单选题The rotor of the hydraulic motor rotates at a speed proportional to the （）.A flow of oilB pressure of oilC A and BD temperature of oil
题目
flow of oil
pressure of oil
A and B
temperature of oil
相似问题和答案
第1题：
A hydraulic motor may be driven by______.
A.an electric motor
B.a diesel engine
C.a compressor
D.oil
第2题：
ram relief valves bypass oil to stop rudder movement
six-way valve shifts to the neutral flow position
steering pump electric motor is de - energized by the transfer switch
follow-up gear takes the hydraulic pump off stroke
第3题：
A.prime mover speed
B.number of energized main motor poles
C.propulsion generator field strength
D.electric coupling field strength
第4题：
in the pert position
in the starboard position
in the neutral position
to be dismantled
第5题：
have a larger than normal dead band
produce excessive speed response to a load change
respond slowly to any change in engine load
stabilize engine speed at the new governor setting
第6题：
Which method should be used to warm up the pump turbines prior to discharge ________．
A.Lock the turbine rotor and slowly bleed in steam until operating temperature is reached
B.Run the pump at high speed with the discharge valves closed
C.Run the turbine at slow speed with the pump disconnected
D.Shut the discharge valve and run the pump at slow speed
第7题：
excessive drive motor speed
excessive pump discharge pressure
too low of a tilting box angle
insufficient drive motor speed
第8题：
Leakage of hydraulic fluid from around the shaft of a hydraulic motor may be caused by ______.
A.permanent loss of pump suction
B.worn shaft seals
C.high level in the oil sump
D.low motor RPM
第9题：
an electric motor
a diesel engine
a compressor
oil
第10题：
half the engine speed
twice the engine speed
the engine speed
four times the engine speed