Ship’s steering gear refers to（）

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

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

A . Non-follow-up B . Rudder adjustment C . Weather adjustment D . All the above may be activated

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

A . Only one pump should be used at any time B . The ship speed should be reduced to 70% of the normal C . Watch keeping of the steering gear should be increased D . Limitations of the steering gear should be logged but the bridge need not be informed

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

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

A . the hunting gear B . the rudder stock C . the rudder controller D . the feedback unit

A . hydraulic steering B . follow-up steering C . remote control steering D . air controlled steering

A . not under command B . restricted in her ability to manoeuvre C . restrained by her draught D . underway

A . check hydraulic oil levels every hour B . check the rams for overheating C . check for excessive oil leakage from rams D . drain water from telemotor cylinders each watch

A . duty B . on duty C . at duty D . in duty

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

A . set for maximum torque B . on the purge and vent stroke C . in the neutral position D . rotating backward

A . control equipment B . power unit C . transmission mechanisms D . fittings and pipeline

A . relieves excessive fluid pressure B . takes the pump off stroke when the desired rudder angle is attained C . synchronizes wheel position with the rudder position D . returns the rudder to midposition when the wheel is released

A . transmitter B . tele-motor C . hydraulic ram D . hydraulic cylinder

A . not under command B . restricted in her ability C . restrained by her draught D . underway

A . ram relief valves bypass oil to stop rudder movement B . six-way valve shifts to the neutral flow position C . steering pump electric motor is de - energized by the transfer switch D . follow-up gear takes the hydraulic pump off stroke

A . function when the rudder is amidships B . relieve excess whip pressure from the hydraulic oil system C . protect the piping assembly from external rudder shock D . relieve excessive telemotor pressure

A . a test from the alternative power supply，if installed B . timing the movement of the rudder from hard over to hard over C . verification that the rudder angle indicator shows the actual position of the rudder(s) D . visual inspection of the steering linkage

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

A.allow an alternate main pump to start in the fully loaded condition thus developing immediate full torque B.prevent either main pump from being hydraulically motored when idle by cross pressure flow C.prevent both units from operating simultaneously which could result in doubling the flow of oil and pressure leading to over pressurization of the system D.all of the above