单选题In an elector-hydraulic steering system, rudder shock is limited by（）Aa differential gearBreturn springsCa hydraulic accumulatorDrelief valves
单选题
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
参考解析
解析：
暂无解析
相关考题：
We use ________ when proceeding in dense fogA.auto-steeringB.gyro-pilotC.rudder gearD.hand-steering
The “rudder adjustment” control on an autopilot steering stand is used to ______.A.align the rudder angle indicator with the true rudder angleB.set the number of degrees of rudder per degree of course errorC.set the departure from base course before actuating the rudderD.set the rate at which the rudder responds
While inspecting the steering system at sea, you should check forA.air bubbles in the sight glassB.any leaks in the systemC.over-travel in the rudder angle indicatorD.lost motion in the rams
The_______in the steering gear move the rudder to the required angleA.control equipmentB.power unitC.transmission mechanismsD.fittings and pipeline
Air trapped in the hydraulic fluid of a steering system may be indicated byA.the steering pumps overspeedingB.a jammed open relief valveC.a constantly occurring improper rudder responseD.excessive ram pressure
The follow-up gear on an electro-hydraulic steering gearA.relieves excessive fluid pressureB.takes the pump off stroke when the desired rudder angle is attainedC.allows for rudder movement faster than the movement of the shipsD.returns the rudder to amidships when the wheel is release
When steering by hand，which of the following may be a functional input to the steering gear as a result of turning the wheel ________．A.Non-follow-upB.Rudder adjustmentC.Weather adjustmentD.All the above may be activated
What should be used to steer an open lifeboat if the rudder becomes lost or damaged ________．A.Sea anchorB.Steering oarC.Spare rudderD.Daggerboard
单选题The test of a towing vessel’s steering gear control system includes each item EXCEPT（）.Aa test from the alternative power supply，if installedBtiming the movement of the rudder from hard over to hard overCverification that the rudder angle indicator shows the actual position of the rudder(s)Dvisual inspection of the steering linkage
单选题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?（）AThe six-way valve opensBThe steering service pump motor is stoppedCThe follow-up gear takes the pump off strokeDThe cylinder relief valves bypass oil to the suction side the pump
单选题Air trapped in the hydraulic fluid of a steering system would be indicated by（）Aan improper rudder responseBhammering noises in the equipment or transmission linesCpopping or sputtering noisesDall the above
单选题The purging of air from an elector-hydraulic steering gear unit is necessary when（）Achanging over to hand pump operationBengaging the trick wheelCthe system has been filled with new oilDthe rudder angle indicator does not match the helm position
单选题Most hydraulic steering gears are fitted with relief valves which（）Afunction when the rudder is amidshipsBrelieve excess whip pressure from the hydraulic oil systemCprotect the piping assembly from external rudder shockDrelieve excessive telemotor pressure
单选题The in the steering gear move the rudder to the required angel（）Acontrol equipmentBpower unitCtransmission mechanismsDfittings and pipeline
单选题The function of the hydraulic telemotor transmitter used in an electro-hydraulic steering gear system is to （）.Atransmit the rudder angle to the bridge indicatorBprevent the control linkage from striking the stops when hard overCautomatically purge all entrained air from the systemDsend hydraulic signals to the receiving unit
单选题Air trapped in the hydraulic fluid of a steering system may be indicated by（）Athe steering pumps overspeedingBa jammed open relief valeCa constantly occurring improper rudder responseDexcessive ram pressure
单选题The power and torque capability of the steering system must be such that the rudder can be swung from （）one side to（）the other side with the ship at maximum speed.A35°；35°B35°；30°C15°；15°D28°；60°
单选题The control rod of a steering gear pump is attached at its outer end to （）.Athe hunting gearBthe rudder stockCthe rudder controllerDthe feedback unit
单选题During steering gear test should be moved through its full travel in both directions（）ApumpBthe cylinderCthe hunting gearDthe rudder
单选题The required rudder angle is transmitted hydraulically or electrically from the steering wheel at the bridge to the （）at the steering gear, just above the rudder.AtransmitterBtele-motorChydraulic ramDhydraulic cylinder
单选题If a heavy sea strikes the rudder, the shock is transmitted through the tiller to （）.Athe tiller armsBthe swivel blocksChunting gearsDthe rams
单选题The follow-up gear on an electro-hydraulic steering gear（）Arelieves excessive fluid pressureBtakes the pump off stroke when the desired rudder angle is attainedCsynchronizes wheel position with the rudder positionDreturns the rudder to midposition when the wheel is released
单选题Under normal operating conditions, the rudder is hydraulically locked unless （）.Athe manual trick wheel is engaged for steeringBthe variable stroke pump is off strokeCa rudder order is given by the control systemDan electric power system failure occurs at the steering gear
单选题A power failure in the hydraulic system of a compact type steering gear would cause the rudder to（）Aswing 35°right or leftBremain locked in its last positionCmove to the mid-ship position automaticallyDjam against the rudder emergency stops
单选题Which of the devices listed, when used on an electro-hydraulic steering gear, keeps the movement of the redder closely in step with the steering wheel?（）AThe follow-up gearBThe rudder angle indicatorCThe synchronous electric transmitterDA rudder angle limit switch
单选题While inspecting the steering system at sea, you should check for （）.Aair bubbles in the sight glassBany leaks in the systemCover-travel in the rudder angle indicatorDlost motion in the rams
单选题The hand steering is a method by which the motion of the rudder is controlled with （）.Aa motor-driven steering wheelBa pneumatic steering wheelCa hand-driven steering wheelDan electric steering wheel