A.function when the rudder is amidships
B.relieve excess whip pressure from the hydraulic oil system
C.protect the piping assembly from external rudder shock
D.relieve excessive telemotor pressure
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A.Rudder angle indicator
B.Follow-up gear
C.Electric transmitter
D.Rudder angle limit switch
A.return springs
B.six-way valve
C.follow-up gear
D.differential gear
A.the steering pumps overspeeding
B.a jammed open relief vale
C.a constantly occurring improper rudder response
D.excessive ram pressure
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
A.Loss of vessel steering
B.Overheating of the gyrocompass
C.Jamming of the six-way vale
D.Jamming of the follow-up device
最新試題
The shipboard oil pollution emergency plan will be invalid after ()
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Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?()
Cold weather starting of a diesel engine may be made easier by()
Which one is NOT the ‘clear grounds’ for a more detailed inspection?()
The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the()
() is not installed on the main switchboar.
()connectors hold best if a wire is accidentally pulled or a connection becomes loose.
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Which of the following items don’t belong to dock repair works?()