A.nip
B.nap
C.gap
D.lip
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A.less than
B.lighter than
C.larger than
D.smaller than
A.less than
B.lighter than
C.larger than
D.smaller than
A.smoky
B.a little bit dense
C.visible
D.almost invisible
A.the pressure of the starting air is high enough
B.there is enough air in the air reservoirs
C.the air is supplied into the cylinders in the appropriate sequence
D.all of the above
A.the start fails
B.the fuel pumps will be put into operation
C.the fuel valves are damaged
D.the combustion process will take over
最新試題
In diesel engines, the four basic events (intake, compression, power and exhaust) are performed once in （）.
A thrust bearing is used with a propulsion diesel engine to （）.
Combustion knock occurring in a diesel engine can be caused by （）.
When fuel oil has seriously contaminated a diesel engine lubricating oil, you should （）.
In a simple mechanical governor, the （）.
For a given size engine, the two-stroke/cycle diesel engine will deliver more power than a four-stroke/cycle diesel engine because （）.
An automated diesel engine should normally shut down due to （）
Maximum horsepower of a diesel engine is attained （）.
The highest pressure in a diesel engine cylinder normally occurs （）.
Diesel engine control can be obtained by the bridge （）.