單項(xiàng)選擇題Rudder position is shown on the bridge by the()

A.rudder angle indicator
B.follow-up gear
C.telemotor position
D.relief valves


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1.單項(xiàng)選擇題In an elector-hydraulic steering system, rudder shock is limited by()

A.a differential gear
B.return springs
C.a hydraulic accumulator
D.relief valves

2.單項(xiàng)選擇題Most hydraulic steering gears are fitted with relief valves which()

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

3.單項(xiàng)選擇題On an electro-hydraulic steering gear, which of the listed devices will keep the rudder from over-traveling the bridge signal?()

A.Rudder angle indicator
B.Follow-up gear
C.Electric transmitter
D.Rudder angle limit switch

4.單項(xiàng)選擇題Rudder motion is prevented from exceeding the movement of the steering wheel by the()

A.return springs
B.six-way valve
C.follow-up gear
D.differential gear

5.單項(xiàng)選擇題Air trapped in the hydraulic fluid of a steering system may be indicated by()

A.the steering pumps overspeeding
B.a jammed open relief vale
C.a constantly occurring improper rudder response
D.excessive ram pressure