A、more than 28 seconds
B、more than 60 seconds
C、less than 28 seconds
D、less than 60 seconds
更多“The main steering gear must be able to steer the ship at maximum ahead service speed and be capable at this speed, and at the ships deepest service draught, of putting the rudder from 35 degrees on one side to 30 degrees on the other side within no （）.”相关的问题
A、Both the main steering gear and the auxiliary steering gear should be operated B、The alarms fitted to the remote control system should be operated C、The emergency generator compartment should be checked D、The communication system between the bridge and the steering gear compartment should be operated
A、It is required that all ships are provided with two independent steering gear systems that is one main and one auxiliary B、The auxiliary gear could be power operated in passenger ships C、The auxiliary gear must be of adequate strength and sufficient to steer a ship at navigable speed D、All moving parts of the steering gear must be guarded against any possible damage
A、A.hydraulic steering B、B.follow-up steering C、C.remote control steering D、D.air controlled steering
A、a motor-driven steering wheel B、a pneumatic steering wheel C、a hand-driven steering wheel D、an electric steering wheel
A、a motor-driven steering wheel B、a pneumatic steering wheel C、a hand-driven steering wheel D、an electric steering wheel
A、A.transmitter at the steering station and a receiver at the steering engine B、B.reversible motor at the steering station geared to the steering pumps C、C.small induction motor on the bridge which controls the redder through pulleys D、D.variable displacement hydraulic pump driven by a reversible DC motor
A、in motion, providing a null input B、not in motion, thus providing a null input C、in motion, providing an input to place the main pump on maximum stroke D、in motion, providing an input to place the main pump at null stroke
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