单项选择题
What is commonly used to create turbulence in a diesel engine combustion system?()
A.Shape of the piston crowns
B.Increasing the compression ratios
C.Increasing the piston crowns
D.Increasing the turbocharger gear ratio
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相关考题
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单项选择题
What causes diesel fuel to be ignited in the cylinder of an operating diesel engine?()
A.Spark plug
B.Heat of compression
C.Carburetor
D.Glow plug -
单项选择题
If a diesel engine fails to start,one of the likely causes is ()
A.low compression temperature
B.low ambient air pressure
C.high lube oil pump pressure
D.high fuel oil booster pump pressure -
单项选择题
Icreasing the exhaust valve tappet clearance of a diesel engine will result in the exhaust valve opening ()
A.later and closing earlier
B.later and closing later
C.earlier and closing earlier
D.earlier and closing later
