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单选题
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
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考题
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
考题
According to Regulations, a power driven auxiliary steering gear for a vessel capable of a 12 knot service speed, must be able to meet the rudder movement requirements at which of the minimum vessel speeds listed below?A.6 knotsB.7 knotsC.9 knotsD.12 knots
考题
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
考题
Which entry is NOT required in the Official Logbook?______A.Steering gear testsB.Position of the load line and freeboard upon sailingC.Commencemet and termination of cargo operationsD.Closure of hatches and sideports upon sailing
考题
Dual electro-hydraulic steering units usually operate ______．A.With both pumps on line at the same timeB.With one pump on standbyC.With the follow-up gear disconnectedD.Only when the rudder is moved amidships
考题
When the helm is turned on the navigation bridge，which of the listed actions will be the FIRST response in the steering room on a ship equipped with an electro-hydraulic steering gear ________．A.The pumps go to full strokeB.The six-way valve aligns itself with the running pumpC.Both port and starboard cables are energizedD.The synchronous receiver turns，duplicating the helm motion
考题
In an electro-hydraulic steering system, rudder movement is maitained 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When the desired rudder angle is attained by a typical double mm electro-hydraulic steering gear,the（）.A
ram relief valves bypass oil to stop rudder movementB
six-way valve shifts to the neutral flow positionC
steering pump electric motor is de - energized by the transfer switchD
follow-up gear takes the hydraulic pump off stroke
考题
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?（）A
The six-way valve opensB
The steering service pump motor is stoppedC
The follow-up gear takes the pump off strokeD
The cylinder relief valves bypass oil to the suction side the pump
考题
单选题Which of the devices listed is installed on a diesel engine to isolate some of the crankshaft vibrations caused by rotational and reciprocating forces?（）A
Planetary gear setB
Torsional vibration damperC
Friction clutchD
Air bladder clutch
考题
单选题When the steering wheel is turned, oil is directed to the steering gear rams by（）A
modulating the oil flow with the six-way valveB
moving the automatic pressure differential valveC
moving the receiving telemotor which regulates the tow-way valveD
varying the eccentricity of a floating ting or angle of a tilting box
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Which of the following is NOT true according to the passage?（）A
Both the main steering gear and the auxiliary steering gear should be operatedB
The alarms fitted to the remote control system should be operatedC
The emergency generator compartment should be checkedD
The communication system between the bridge and the steering gear compartment should be operated
考题
单选题Dual electro-hydraulic steering units usually operate （）.A
with both pumps on line at the same timeB
with one pump on standbyC
with the follow-up gear disconnectedD
only when the rudder is moved amidships
考题
单选题If a severe leak develops in the electro-hydraulic steering gear unit is necessary when（）A
Loss of vessel steeringB
Overheating of the gyrocompassC
Jamming of the six-way valeD
Jamming of the follow-up device
考题
单选题In an electro-hydraulic steering gear system, when will the variable displacement pump be placed on stroke?（）A
When the helm is at any angle other than amidshipsB
When the six-way valve is openedC
When the ram relief valves liftD
When the redder angle is different from the position of the helm
考题
单选题According to Regulations, a power driven auxiliary steering gear for a vessel capable of a 12 knot service speed, must be able to meet the rudder movement requirements at which of the minimum vessel speeds listed below?（）A
6 knotsB
7 knotsC
9 knotsD
12 knots
考题
单选题According to Regulations, a power driven auxiliary steering gear for a vessel capable of a 20 knot service speed, must be capable of producing a rudder movement at which of the minimum speeds listed below?（）A
7 knotsB
10 knotsC
15 knotsD
20 knots
考题
单选题The follow-up gear on an electro-hydraulic steering gear（）A
relieves excessive fluid pressureB
takes the pump off stroke when the desired rudder angle is attainedC
synchronizes wheel position with the rudder positionD
returns the rudder to midposition when the wheel is released
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With reference to operating a four-ram steering gear system under emergency conditions, which one of the following statements is incorrect?（）A
Only one pump should be used at any timeB
The ship speed should be reduced to 70% of the normalC
Watch keeping of the steering gear should be increasedD
Limitations of the steering gear should be logged but the bridge need not be informed
考题
单选题With reference to rules governing steering gear, which one of the following rules is incorrect? （）A
It is required that all ships are provided with two independent steering gear systems that is one main and one auxiliaryB
The auxiliary gear could be power operated in passenger shipsC
The auxiliary gear must be of adequate strength and sufficient to steer a ship at navigable speedD
All moving parts of the steering gear must be guarded against any possible damage
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When there is no movement of the rams on an electro-hydraulic steering gear, the tilting box of the running pump is （）.A
set for maximum torqueB
on the purge and vent strokeC
in the neutral positionD
rotating backwards
考题
单选题In an electro-hydraulic steering gear, any change in relative position between the synchronous receiver and the follow-up gear will result in（）A
the pump going to full strokeB
closing of the six-way valveC
driving the rams up against the stopsD
a corresponding slowing or increasing of the pumped flow rate
考题
单选题When steering on autopilot which of the following input conditions may NOT have an effect on the control of the steering gear（）.A
Non-follow-upB
Rudder adjustmentC
Weather adjustmentD
All the above may be activated
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