If the diesel fuel vapors present are within the flammable range （）.
1、If the diesel engine fuel injection ti
If the diesel engine fuel injection timing is changed to delay the start of injection until the pistons are at top dead center, the engine w...
2、Problems with the diesel engine fuel i
Problems with the diesel engine fuel injection pump are usually caused by（）Aimproper adjustmentBcontaminated fuelCkinked fuel linesDexcessive engine vibratio
3、The ignition quality of a diesel fuel
The ignition quality of a diesel fuel oil is indicated by the （）Aspecific gravityBcetane numberCviscosityDcalorific valve
4、The vapors given off by heated fuel oi
The vapors given off by heated fuel oil are flammable, explosive, and （）Alighter than airBheavier than airCodorlessDnontoxic
Diesel fuel vapors （）.Acan not be ignited by a spark unless the vapor is in a confined spaceBare nontoxic in all concentrationsCcan not be ignited by a spark unless they are at their auto-ignition temperatureDare heavier than air
6、The ignition quality of diesel fuel is
The ignition quality of diesel fuel is indicated by its（）Aoctane numberBcetane numberCviscosity in Saybolt secondsDair fuel ratio