单项选择题
On an electro-hydraulic steering gear, which of the listed devices will keep the rudder from over-traveling the bridge signal?（）
A.Rudder angle indicator
B.Follow-up gear
C.Electric transmitter
D.Rudder angle limit switch
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相关考题
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单项选择题
Rudder motion is prevented from exceeding the movement of the steering wheel by the（）
A.return springs
B.six-way valve
C.follow-up gear
D.differential gear -
单项选择题
Air trapped in the hydraulic fluid of a steering system may be indicated by（）
A.the steering pumps overspeeding
B.a jammed open relief vale
C.a constantly occurring improper rudder response
D.excessive ram pressure -
单项选择题
The purging of air from an elector-hydraulic steering gear unit is necessary when（）
A.changing over to hand pump operation
B.engaging the trick wheel
C.the system has been filled with new oil
D.the rudder angle indicator does not match the helm position
