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單項選擇題

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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單項選擇題

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

單項選擇題

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

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