The follow-up gear on an electro-hydraulic steering gear（）

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  A . more than 28 seconds B . more than 60 seconds C . less than 28 seconds D . less than 60 second

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• The purging of air from an elector-hydraulic steering gear unit is necessary when（）

  A . changing over to hand pump operation B . engaging the trick wheel C . the system has been filled with new oil D . the rudder angle indicator does not match the helm positio

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• 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-up B . Rudder adjustment C . Weather adjustment D . All the above may be activated

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• 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 amidships B . When the six-way valve is opened C . When the ram relief valves lift D . When the redder angle is different from the position of the helm

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  A . when B . where C . which D . that

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• 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 indicator B . prevent the control linkage from striking the stops when hard over C . automatically purge all entrained air from the system D . send hydraulic signals to the receiving unit

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• Rotation of the steering wheel on the navigation bridge initiates oil pressure being applied to the steering gear rams by （）.

  A . regulating the oil flow with the six-way valve B . moving the automatic differential valve C . moving the receiving tele-motor which regulates the two-way valve D . varying the angle of a tilting box or eccentricity of a floating ring

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• 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 opens B . The steering service pump motor is stopped C . The follow-up gear takes the pump off stroke D . The cylinder relief valves bypass oil to the suction side the pum

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• When there is no movement of the rams on an electro-hydraulic steering gear, the tilting box of the running pump is （）.

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• 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 stroke B . closing of the six-way valve C . driving the rams up against the stops D . a corresponding slowing or increasing of the pumped flow rate

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