单项选择题
A practical way of checking for excessive fuel injection in one cylinder of an operating diesel engine is to （）
A.feel the high pressure fuel line
B.check the cylinder exhausts for white smoke frequently
C.check the cylinder exhaust temperature
D.isolate each cylinder and inspect the injector
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相关考题
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单项选择题
If the compression ratio is increased on any diesel engine, （）
A.the expansion ratio will decrease
B.combustion will be slowed down
C.thermal efficiency will decrease
D.thermal efficiency will increase -
单项选择题
If a used lube oil analysis indicates excessive fuel dilution, the lube oil should be （）
A.changed
B.centrifuged
C.filtered
D.settled -
单项选择题
How are the pressure and temperature affected in a diesel engine cylinder during compression?（）
A.Pressure and temperature decrease
B.Pressure and temperature increase
C.Pressure decreases and temperature increases
D.Pressure increases and temperature decreases
