单项选择题
A.Leaking fuel injectors B.Lower than normal compression C.Delayed fuel injection D.All of the above are correct
When the opening pressure of a diesel engine fuel injec...
单项选择题When the opening pressure of a diesel engine fuel injector is greater than that specified by the engine manufacturer, which of the following problems can be expected?（）
A.Quantity of fuel injected tends to be decreased B.Quantity of fuel injected will always be increased C.Start of injection tends to be advanced D.Duration of injection will always greater
A properly honed diesel engine cylinder liner will（）A.p...
单项选择题A properly honed diesel engine cylinder liner will（）
A.prevent piston ring wear B.shorten the ring break-in period C.prevent cylinder liner glazing D.appear slick and glazed
A diesel engine is supercharged in order to（）A.lower th...
单项选择题A diesel engine is supercharged in order to（）
A.lower the no-load RPMs B.provide more air for combine with the fuel C.increase the no-load RPMs D.provide more fuel combine with the air
