sliding block
pintle
reaction ring
tilting box or swash plate
第1题：
The usual number of single-acting pistons used in a variable stroke axial-piston pump is
A.3 or 5
B.5 or 7
C.7 or 9
D.9 or 11
第2题：
If one hydraulic pump of an electro-hydraulic steering unit fails, the vessel’s steering can be initially and best maintained by using the ______.
A.trick wheel
B.accumulator
C.standby pump
D.Telemotor
第3题：
Overheating of the hydraulic fluid in an electro-hydraulic anchor windlass can result from a/an( ).
A.overload on the pump motor
B.low fluid level in the reservoir
C.low fluid viscosity around the shaft seal
D.high oil level in the sump
第4题：
neutral
end
opening
closure
第5题：
excessive drive motor speed
excessive pump discharge pressure
too low of a tilting box angle
insufficient drive motor speed
第6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7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8题：
The delivery rate of an axial piston hydraulic pump is controlled by varying the position of the
A.tilting box
B.slide block
C.pintle
D.reaction ring
第9题：
reduce radial thrust to the impeller
double the liquid velocity through the pump when compared to a single volute
reduce hydraulic end thrust
provide the effect of multi-staging
第10题：
in the pert position
in the starboard position
in the neutral position
to be dismantled