单项选择题
Main 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.whenever the engine side control station is switched to ‘bridge control’
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相关考题
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单项选择题
The camshaft drive is designed to maintain proper camshaft speed relative to crankshaft speedIn maintaining this relationship, the camshaft drive causes the camshaft to rotate at（）
A.one half crankshaft speed in a two-stroke cycle diesel engine
B.crankshaft speed in a two-stroke cycle diesel engine
C.two times crankshaft speed in a two-stroke cycle diesel engine
D.one-fourth times crankshaft speed in a four-stroke cycle diesel engine -
单项选择题
The abbreviation ‘M/E’ is used to represent the（）
A.measure equipment
B.main electrical
C.my engine
D.main engine -
单项选择题
Where tanks are arranged for either oil or ballast （） must be fitted in the pipe so that only the ballast main or the oil transfer main connected to the tank.
A.a sea water chest
B.a change-over chest
C.a buffer tank
D.a three-way valve
