单项选择题

Combustion knock will most likely occur as a result of using a fuel with（）

A.low ignition quality
B.a high volatility
C.low ignition delay
D.a high cetane number

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单项选择题

A.inoperative turbocharger
B.inadequate fuel supply
C.overload on one cylinder
D.unequal load distribution

单项选择题

A.governor sensitivity
B.exhaust temperature
C.fuel injection pressure
D.speed of the can shaft

单项选择题

A.low air charge temperature
B.high cranking speed
C.excessive fuel dilution of lube oil
D.high compression pressure