单项选择题
The fuel injection pumps on a diesel engine are controlled by a linkage system attached to the （）
A.camshaft B.crankshaft C.governor D.flywheel
单项选择题 Which of the listed conditions will occur if a diesel engine exhaust valve is leaking?（）
单项选择题 Which of the following conditions will develop if the flow of ‘raw’ cooling water to diesel engine is obstructed?（）
单项选择题 Aburned exhaust valve may be detected by a higher than normal （）
