问题详情

When the desired rudder angle is attained by a typical double mm electro-hydraulic steering gear, the _____.
A.ram relief valves bypass oil to stop rudder movement
B.six-way valve shifts to the neutral flow position
C.steering pump electric motor is de - energized by the transfer switch
D.follow-up gear takes the hydraulic pump off stroke请帮忙给出正确答案和分析，谢谢！