单选题According to the way the steering gear is operated, the steering gear may be divided into: hand - steering, （） and automatic steering.Ahydraulic steeringBfollow-up steeringCremote control steeringDair controlled steering
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 steering
B
follow-up steering
C
remote control steering
D
air controlled steering
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A spur gear pump should be operated with the discharge valves ______.A.slightly openedB.throttledC.fully openedD.halfway opened
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
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
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单选题When the desired rudder angle is attained by a typical double mm electro-hydraulic steering gear,the（）.Aram relief valves bypass oil to stop rudder movementBsix-way valve shifts to the neutral flow positionCsteering pump electric motor is de - energized by the transfer switchDfollow-up gear takes the hydraulic pump off stroke
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
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单选题Hydraulically, servo-operated, automatic, change over valves, utilized in a two ram hydraulic steering gear, serve to（）Aallow an alternate main pump to start in the fully loaded condition thus developing immediate full torqueBprevent either main pump from being hydraulically motored when idle by cross pressure flowCprevent both units from operating simultaneously which could result in doubling the flow of oil and pressure leading to over pressurization of the systemDall of the above
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单选题Which of the following is NOT true according to the passage?（）ABoth the main steering gear and the auxiliary steering gear should be operatedBThe alarms fitted to the remote control system should be operatedCThe emergency generator compartment should be checkedDThe communication system between the bridge and the steering gear compartment should be operated
单选题Rudder motion is prevented from exceeding the movement of the steering wheel by the（）Areturn springsBsix-way valveCfollow-up gearDdifferential gear
单选题Rotation of the steering wheel on the navigation bridge initiates oil pressure being applied to the steering gear rams by （）.Aregulating the oil flow with the six-way valveBmoving the automatic differential valveCmoving the receiving tele-motor which regulates the two-way valveDvarying the angle of a tilting box or eccentricity of a floating ring
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According to the customs of the port, hatch covers are to be operated by （）.AstevedoresBwatchmenCwinchmenDforemen
单选题If a severe leak develops in the electro-hydraulic steering gear unit is necessary when（）ALoss of vessel steeringBOverheating of the gyrocompassCJamming of the six-way valeDJamming of the follow-up device
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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?（）A6 knotsB7 knotsC9 knotsD12 knots
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单选题With reference to operating a four-ram steering gear system under emergency conditions, which one of the following statements is incorrect?（）AOnly one pump should be used at any timeBThe ship speed should be reduced to 70% of the normalCWatch keeping of the steering gear should be increasedDLimitations of the steering gear should be logged but the bridge need not be informed
单选题With reference to rules governing steering gear, which one of the following rules is incorrect? （）AIt is required that all ships are provided with two independent steering gear systems that is one main and one auxiliaryBThe auxiliary gear could be power operated in passenger shipsCThe auxiliary gear must be of adequate strength and sufficient to steer a ship at navigable speedDAll moving parts of the steering gear must be guarded against any possible damage
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