单选题Start the turning gear, and with some one hand-operating the cylinder lubricators at regular intervals, and with the indicator cocks （）, and with the control gear in the （）position, give the engine at least one complete turn.A open；“stop”B closed；“stop

Before engaging the turning gear and turning the diesel engine, which of the following operation should be done except______.

A.open the indicator cocks

B.supply some CYL.Oil to cylinder liner wall with lubricator (only for two stoke diesel engine)

C.put the fuel handle in the "stop" position

D.pump up the air bottle

Always ensure that the turning gear is______, even at the quay, the wave from other ships may turn the propeller and thus the engine.

A.disengaged

B.engaged

C.assembled

D.disassembled

The spur geared mooring winches have advantages over worm geared ones in .

A.higher efficiency of the gear train while reversing

B.the higher gear ratio

C.the multi-start feature

D.higher recovering speed

If the engine does start on air, but combustion does not immediately begin, the cause may be _____.

A.failure of the fuel pumps

B.starting air pressure too low

C.stop valve in air line closed

D.the turning gear still engaged

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-up

B.Rudder adjustment

C.Weather adjustment

D.All the above may be activated

200 Start the turning gear， and with some one hand-operating the cylinder lubricators at regular intervals, and with the indicator cocks@,

and with the control gear in theoposition, give the engine at least one complete turn

A.open; stop

B.closed, stop

C.open; start

D.closed: start