In a diesel engine, offers the heat energy directly（）； works as working medium and changes the heat energy to mechanical energy（）
1、If the firing pressures in a diesel en
If the firing pressures in a diesel engine are high, although the exhaust temperatures are normal, the cause may be（）Aearly injection timingBw...
2、The burning of fuel oil in a diesel en
The burning of fuel oil in a diesel engine having a high sodium content, will cause （）Acorrosion and grooving of exhaust valvesBcorrosion and...
3、In diesel engineering practice, the te
In diesel engineering practice, the term used to express the ignition quality of a particular fuel is（）Acetane numberBoctane numberCignition index numberDvolatility point
4、In some diesel engine designs,（）the in
In some diesel engine designs,（）the injection of cylinder oil is timed to impinge when the piston and only impinge on（）Ais coming upward；cy...
5、The highest pressure in a diesel engin
The highest pressure in a diesel engine cylinder normally occurs （）.Aat TDCBbefore TDCCafter TDCDduring air starting
6、In a diesel engine, the time taken to
In a diesel engine, the time taken to heat the fuel particles, turn them into vapor, and bring about combustion is called （）Ainjection lagBignition delayCcompressionDturbulence lag