A.by more than 5 percent
B.by less than 10 percent
C.to 95 percent
D.to less than 90 percent
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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’
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
A.measure equipment
B.main electrical
C.my engine
D.main engine
A.a sea water chest
B.a change-over chest
C.a buffer tank
D.a three-way valve
A.open
B.open front type
C.live front type
D.dead front type
最新試題
Cold weather starting of a diesel engine may be made easier by（）
One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is（）
Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?（）
（）are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant.
During the diesel engine running, the water level of F.W expansion tank should normally kept in the （） level of glass tube.
The additional mark （）in the Classification Certificate for Machinery means propulsion apparatus is remotely controlled on the navigating bridge control station, and engine assembly control station is unmanned periodically.
To shut down a diesel engine after it exceeds the set maximum speed，which type of device listed should be used?（）
The treatment of the fuel oils involves storage, heating, filtering and（）
Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?（）
Engine parameters shall be corresponded to NOx Technical Files. This is required by （）