單項選擇題

The purging of air from an elector-hydraulic steering gear unit is necessary when（）

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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單項選擇題

If a severe leak develops in the electro-hydraulic steering gear unit is necessary when（）

A.Loss of vessel steering
B.Overheating of the gyrocompass
C.Jamming of the six-way vale
D.Jamming of the follow-up device

單項選擇題

A power failure in the hydraulic system of a compact type steering gear would cause the rudder to（）

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

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The purging of air from an elector-hydraulic steering gear unit is necessary when（）

你可能感興趣的試題

If a severe leak develops in the electro-hydraulic steering gear unit is necessary when（）

A power failure in the hydraulic system of a compact type steering gear would cause the rudder to（）