单选题In an electro-hydraulic steering gear system, when will the variable displacement pump be placed on stroke?（）AWhen the helm is at any angle other than amidshipsBWhen the six-way valve is openedCWhen the ram relief valves liftDWhen the redder angle is different from the position of the helm
单选题
In an electro-hydraulic steering gear system, when will the variable displacement pump be placed on stroke?（）
A
When the helm is at any angle other than amidships
B
When the six-way valve is opened
C
When the ram relief valves lift
D
When the redder angle is different from the position of the helm
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相关考题：
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