When the helm demands a 20°right rudder movement from an electro-hydraulic steering gear, which of the listed actions will be the FIRST action to happen when this rudder position is attained?()
A:The six-way valve opens
B:The steering service pump motor is stopped
C:The follow-up gear takes the pump off stroke
D:The cylinder relief valves bypass oil to the suction side the pump
出自:海船船员证