The ignition quality of a diesel fuel

1、The rate of fuel injection in a diesel

The rate of fuel injection in a diesel engine cylinder depends primarily on （）.Athe size of the holes in the fuel nozzleBtiming of the pumpCsupply pressure to the pumpDshape of the combustion chamber

2、A change in the quality of fuel atomiz

A change in the quality of fuel atomization by a diesel engine fuel injector would be caused by a/an （）Aincrease in engine speedBincrease in cylinder turbulenceCleaking needle valveDreduction in cylinder turbulence

3、Dirt in a fuel oil system of a diesel

Dirt in a fuel oil system of a diesel engine can cause （）Adamage to strainersBover-speeding of the engineCexcessive cooling of the engineDinjector damage

4、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...

5、The cetane rating of diesel fuel is an

The cetane rating of diesel fuel is an indication of the（）Aignition quality of the fuelBcalorific value of the fuelCflash point of the fuelDrate of fuel consumptio

6、Air in the fuel lines of a diesel engi

Air in the fuel lines of a diesel engine can cause （）Aignition failureBoxygen corrosion of the fuel linesCthe pistons to seizeDblue smoke