网友您好， 请在下方输入框内输入要搜索的题目：
题目内容
（请给出正确答案）
单选题
Steering gears can be arranged with hydraulic control equipment known as a （）, or with electrical control equipment.
A
telemeter
B
telemanometer
C
telemotor
D
telemometer
参考答案
参考解析
解析：
暂无解析
更多 “单选题Steering gears can be arranged with hydraulic control equipment known as a （）, or with electrical control equipment.A telemeterB telemanometerC telemotorD telemometer” 相关考题
考题
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
考题
On a diesel engine equipped with a hydraulic speed control governor, hunting in many cases can be corrected by adjusting the______.A.accumulator spring compressionB.balance pistonC.compensating(补偿) needle valveD.proportional piston
考题
In ______ the control action is independent on the output.A.a closed loop control systemB.an open loop control systemC.a boiler control systemD.a steering gear control system
考题
材料：At 1800，the hydraulic steering system failed once again．The master realized he would require shore assistance to rectify the problem，and diverted towards Portland using the thruster to steer by．The weather at this time was south-south-west force 5．At about three hours later，the thruster drive unit failed due to a leaking fuel injector pipe on the power unit．This was replaced using the spare carried on board．Immediately following the engine restart，an adjacent fuel line failed causing shut down of the unit．With no fuel line spares available，the thruster power unit could not be used．The failure of this unit，and that of the main hydraulic steering system，left the vessel without any steering capability．At 2155，with the weather deteriorating and no steering，the master contacted the Portland Coastguard and a“Pan pan”message was broadcast．A tow to Portland Harbor was arranged and she arrived alongside at 0240 the following morning．The subsequent investigation found that the main hydraulic steering system failure was due to a seized shuttle valve in the main hydraulic solenoid valve block．The solenoid valve had been recently overhauled．It was thought that the“O”rings fitted to the shuttle valve were of either the wrong type or a defective one．The valve had seized in such a position that hydraulic pressure by-passed the system preventing use of the hand steering．问题：The vessel was steered by thruster because ________ failed．A.the hydraulic steering systemB.the solenoid valveC.the thruster driving unitD.the hand steeringThe time that the thruster drive unit failed was ________ hrs．A.1800B.2100C.2155D.0240When the hydraulic steering system failed，________．A.the hand steering system could still be usedB.the auto steering system could still be usedC.both hand and auto steering system were out of useD.neither and steering system nor auto steering system was out of useThe real reason that caused the hydraulic steering system to fail was that ________．A.no fuel line spare were availableB.the weather was deterioratingC.the“O”rings fitted to the shuttle valve were of either the wrong type or a defective oneD.the thruster power unit failed请帮忙给出每个问题的正确答案和分析，谢谢！
考题
If one hydraulic pump of an electro-hydraulic steering unit fails, the vessel’s steering can be initially and best maintained by using the ______.A.trick wheelB.accumulatorC.standby pumpD.Telemotor
考题
单选题Generally，you can best keep a vessel under steering control when the vessel has（）.A
HeadwayB
SternwayC
No way on，with engines stoppedD
No way on，with engines full ahead
考题
单选题Air trapped in the hydraulic fluid of a steering system would be indicated by（）A
an improper rudder responseB
hammering noises in the equipment or transmission linesC
popping or sputtering noisesD
all the above
考题
单选题Most hydraulic steering gears are fitted with relief valves which（）A
function when the rudder is amidshipsB
relieve excess whip pressure from the hydraulic oil systemC
protect the piping assembly from external rudder shockD
relieve excessive telemotor pressure
考题
单选题Hydraulic pumps most commonly used in steering systems are of the （）.A
lobe typeB
screw typeC
axial piston typeD
volute type
考题
单选题What type of valve is used to direct the flow of hydraulic fluid?（）A
Relief valveB
Direction control valveC
Stop valveD
Pressure control valve
考题
单选题It is important with all hydraulic systems to ensure that interlocking arrangements provided for pump or motor control levers are （） before the pump driving motor can be started.A
in the pert positionB
in the starboard positionC
in the neutral positionD
to be dismantled
考题
单选题An AC synchronous transmission type remote steering control system consists of a （）.A
transmitter at the steering station and a receiver at the steering engineB
reversible motor at the steering station geared to the steering pumpsC
small induction motor on the bridge which controls the redder through pulleysD
variable displacement hydraulic pump driven by a reversible DC motor
考题
单选题The function of the hydraulic telemotor transmitter used in an electro-hydraulic steering gear system is to （）.A
transmit the rudder angle to the bridge indicatorB
prevent the control linkage from striking the stops when hard overC
automatically purge all entrained air from the systemD
send hydraulic signals to the receiving unit
考题
单选题According to the way the steering gear is operated, the steering gear may be divided into: hand - steering, （） and automatic steering.A
hydraulic steeringB
follow-up steeringC
remote control steeringD
air controlled steering
考题
单选题On a diesel engine equipped with a hydraulic speed control governor, hunting in many cases can be corrected by adjusting the （）A
accumulator spring compressorB
balance pistonC
compensating needle valveD
proportional piston
考题
单选题For occasional heavy loads, two cranes can be arranged to work together. The operating （） for deck crane motors may be hydraulic electric.A
principleB
mediumC
instructionD
voltage
考题
单选题In （） the control action is independent on(of) the output.A
a closed loop control systemB
an open loop control systemC
a boiler control systemD
a steering gear control system
考题
单选题In （）the control action is independent on the output.A
a closed loop control systemB
an open loop control systemC
a boiler control systemD
a steering gear
考题
单选题A gradual decrease in the discharge pressure of an operating hydraulic pump can be caused by （）.A
the four-way control valve failing to shiftB
the bleeder valve sticking in the open positionC
cold hydraulic fluidD
a clogged air vent falter on the oil reservoir
考题
单选题In an elector-hydraulic steering system, rudder shock is limited by（）A
a differential gearB
return springsC
a hydraulic accumulatorD
relief valves
考题
单选题Which of the following types of hydraulic pumps would be used in a steering system?（）A
LobeB
ScrewC
Radial pistonD
Volute
考题
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?（）A
The follow-up gearB
The rudder angle indicatorC
The synchronous electric transmitterD
A rudder angle limit switch
考题
单选题In an electro-hydraulic steering system, under movement is maintained in close synchronization with the steering wheel position by means of the （）.A
trick-wheelB
follow-up controlC
six-way valveD
Rapson slide
考题
单选题Cocks and valves control or interrupt flow, and have internal passages arranged so that they can be restricted or closed: in cocks, by rotating the plug, and in valves, by lowering, raising or rotating a disc in relation to a seating surfaceAccording to the above sentence, which of the following statements is not true?（）A
Flows of fluids can be restricted by both cocks and valvesB
There are seats in the internal passages of valvesC
A disc of valve only moves up and downD
We can infer that there is a bore in cock ping
考题
单选题In an emergency，the electro-hydraulic steering units can be directly controlled by the（）.A
trick wheelB
rapson slideC
follow-up gearD
receiver unit
考题
单选题If one hydraulic pump of an electro-hydraulic steering unit falls, the vessels steering can be initially and best maintained by using the （）.A
trick wheelB
accumulatorC
standby pumpD
telemotor
考题
单选题The hydraulic （） is used to control engine speed.A
motorB
pumpC
governorD
capstan
热门标签
最新试卷