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單項(xiàng)選擇題

Control of the main propulsion diesel engines can be shifted from the engine room to the wheelhouse from the （）.

A.wheelhouse control station
B.engine room control station
C.captains office
D.chief engineers office

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Combustion knock can occur in the cylinders of a diesel engine under any condition permitting （）.

A.a shortened ignition delay period
B.a lean fuel/air mixture
C.excess fuel in the combustion chamber
D.rapid vaporization of injected fuel droplets

單項(xiàng)選擇題

Diesel engine control can be obtained by the bridge （）.

A.at any time
B.only after the engine room control station is switched to “bridge control”
C.whenever the secondary station is switched to "bridge control"
D.with the approval of the chief engineer only