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
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A.Loss of vessel steering
B.Overheating of the gyrocompass
C.Jamming of the six-way vale
D.Jamming of the follow-up device
A.swing 35°right or left
B.remain locked in its last position
C.move to the mid-ship position automatically
D.jam against the rudder emergency stops
A.6 knots
B.7 knots
C.9 knots
D.12 knots
A.7 knots
B.10 knots
C.15 knots
D.20 knots
A.relieves excessive fluid pressure
B.takes the pump off stroke when the desired rudder angle is attained
C.synchronizes wheel position with the rudder position
D.returns the rudder to midposition when the wheel is released
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