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
单项选择题 A properly honed diesel engine cylinder liner will（）
单项选择题 A diesel engine is supercharged in order to（）
单项选择题 Distortion of the spray pattern of a nozzle or injector may be indicated by a/an（）
