transmit the rudder angle to the bridge indicator
prevent the control linkage from striking the stops when hard over
automatically purge all entrained air from the system
send hydraulic signals to the receiving unit
第1题：
Among the basic categories of equipment, which of the following is used to convert hydraulic energy into continuous rotary motion?
A.hydraulic pumps
B.valves
C.hydraulic cylinders
D.hydraulic motors
第2题：
Which two statements are true about the role of split horizon？（）
第3题：
Among the basic categories of equipment, which of the following are used to allow the hydraulic energy to be controlled?
A.hydraulic pumps
B.valves
C.hydraulic cylinders
D.hydraulic motors
第4题：
lobe type
screw type
axial piston type
volute type
第5题：
function when the rudder is amidships
relieve excess whip pressure from the hydraulic oil system
protect the piping assembly from external rudder shock
relieve excessive telemotor pressure
第6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7题：
control the back pressure of return oil
lock the oil lines under some conditions
change the direction of oil flow
act as relief valve
第8题：
Among the basic categories of equipment, which of the following are used to convert the hydraulic energy into linear motion?
A.hydraulic pumps
B.valves
C.hydraulic cylinders
D.hydraulic motors
第9题：
act as a shock absorber
maintain the stored oil under pressure
act as a base or foundation for the power unit
eliminate pressure surges in the system
第10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