A.for starting diesel engines
B.in pneumatic control system
C.in pneumatic tools
D.All the above are true
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A.the air receivers
B.the starting valves
C.the cylinder covers
D.the distributors
A.machine efficiency
B.machinery efficiency
C.mechanical efficiency
D.mechanics efficiency
A.to need
B.ready for
C.want to
D.going to be
A.water
B.fresh air
C.fuel oil
D.gas
A.caulked into
B.caulking into
C.pressed into
D.screwed into
最新試題
In diesel engines, the four basic events (intake, compression, power and exhaust) are performed once in （）.
White smoke exhausting from an operating diesel engine may indicate （）.
Combustion knock occurring in a diesel engine can be caused by （）.
When would the available energy of the exhaust gases of a two-stroke/cycle diesel engine be insufficient to drive an exhaust gas turbocharger, resulting in the incorrect amount of air for combustion?（）
A thrust bearing is used with a propulsion diesel engine to （）.
Lube oil cannot be efficiently filtered if its （）.
Maximum horsepower of a diesel engine is attained （）.
The ability of the governor to prevent fluctuations in engine speed is termed （）.
Control of the main propulsion diesel engines can be shifted from the engine room to the wheelhouse from the （）.
The main purpose of the piston oil scraper rings is to （）.