单项选择题
A.later and closing earlier B.later and closing later C.earlier and closing earlier D.earlier and closing later
When the opening pressure of a diesel fuel injector is ...
单项选择题When the opening pressure of a diesel fuel injector is greater than that specified by the engine manufacturer，the （）
A.quantity of fuel injected is decreased B.quantity of fuel injected will always be increased C.start of injection is advanced D.duration of injection will always be greater
Broken intake valve springs on one cylinder of a diesel...
单项选择题Broken intake valve springs on one cylinder of a diesel engine can cause the engine to （）
A.Over speed B.fire improperly C.lose oil pressure D.overheatrapidly
A device which functions to bring a diesel engine to a ...
单项选择题A device which functions to bring a diesel engine to a full stop to protect it from damage is known as a/an （）
A.torque limiter B.over-speed trip C.over-speed governor D.load limit governor
