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单选题
The control rod of a steering gear pump is attached at its outer end to （）.
A
the hunting gear
B
the rudder stock
C
the rudder controller
D
the feedback unit
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a test from the alternative power supply，if installedB
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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
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单选题The purging of air from an elector-hydraulic steering gear unit is necessary when（）A
changing over to hand pump operationB
engaging the trick wheelC
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单选题A gear pump belongs to （） according to its working principle.A
reciprocating pumpsB
positive displacement pumpsC
centrifugal pumpsD
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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
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单选题An advantage of a helical gear pump over a simple gear pump is that the helical gear pump is capable of （）.A
maintaining a steadier speedB
delivering liquids over greater distancesC
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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
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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
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单选题During steering gear test should be moved through its full travel in both directions（）A
pumpB
the cylinderC
the hunting gearD
the rudder
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单选题Dual electro-hydraulic steering units usually operate （）.A
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with the follow-up gear disconnectedD
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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
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a closed loop control systemB
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a steering gear
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returns the rudder to midposition when the wheel is released
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单选题Under normal operating conditions, the rudder is hydraulically locked unless （）.A
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单选题A power failure in the hydraulic system of a compact type steering gear would cause the rudder to（）A
swing 35°right or leftB
remain locked in its last positionC
move to the mid-ship position automaticallyD
jam against the rudder emergency stops
考题
单选题As the designated rudder angle is being achieved, as a result of the original command input, the steering gear follow-up mechanism is（）A
in motion, providing a null inputB
not in motion, thus providing a null inputC
in motion, providing an input to place the main pump on maximum strokeD
in motion, providing an input to place the main pump at null stroke
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
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Watch keeping of the steering gear should be increasedD
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考题
单选题With reference to rules governing steering gear, which one of the following rules is incorrect? （）A
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The auxiliary gear could be power operated in passenger shipsC
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All moving parts of the steering gear must be guarded against any possible damage
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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
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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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