单项选择题
A.higher raw water temperatures
B.higher jacket water temperatures
C.a malfunctioning thermostat
D.higher fuel temperature
单项选择题 The fuel injection pumps on a diesel engine are controlled by a linkage system attached to the （）
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?（）