单项选择题
A.an air start cam B.cylinder compression pressure C.starting air pressure D.valve springs
The cetane rating of diesel fuel is an indication of th...
单项选择题The cetane rating of diesel fuel is an indication of the （）
A.ignition quality of the fuelB.calorific value of the fuelC.flash point of the fuelD.rate of fuel consumption
The condensers located in various stages of a flash eva...
单项选择题The condensers located in various stages of a flash evaporator are cooled by（）
A.distillate B.seawater C.brine D.air
Which of the diesel engine components listed increase a...
单项选择题Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?（）
A.Impeller B.Compressor C.After-cooler D.Exhaust differ
