单项选择题
A.degree of cylinder air turbulence
B.firing pressure in the engine
C.quality of fuel to be injected
D.duration of the ignition delay period
单项选择题 One method of determining crankshaft misalignment is by（）
单项选择题 Heat for igniting the fuel oil in the cylinder of a diesel engine is generated by the （）
单项选择题 Diesel engine crankshaft deflection readings are generally taken at four crank positionsGood engineering practice requires the deflection gage or indicator to be（）