Combustion knock can occur in the cylinders of a diesel engine under any condition permitting ().
- Aa shortened ignition delay period
- Ba lean fuel/air mixture
- Cexcess fuel in the combustion chamber
- Drapid vaporization of injected fuel droplet
Combustion knock can occur in the cylinders of a diesel engine under any condition permitting ().
1、Combustion knock will most likely occu
Combustion knock will most likely occur as a result of using a fuel with()Alow ignition qualityBa high volatilityClow ignition delayDa high cetane number
2、In the combustion chamber, the part wh
In the combustion chamber, the part whose surface is exposed to the highest temperature is the ().Acylinder linerBcylinder coverCpistonDexhaust valve
3、A fire, occurring in the windings, of
A fire, occurring in the windings, of an overloaded electrical motor, is considered a ().Aclass "A" fireBclass "B" fireCclass "C" fireDclass "D" fire
4、Combustion gases formed in the cylinde
Combustion gases formed in the cylinder of a diesel engine are prevented from blowing past the piston by ()Acylinder valvesBcompression ringsCpiston skirtsDoil ring
5、Poor combustion in a diesel engine can
Poor combustion in a diesel engine can be caused by ().Ahigh compression pressureBlow intake air temperatureClow exhaust pressureDhigh scavenge air pressure
6、Combustion knock occurring in a diesel
Combustion knock occurring in a diesel engine can be caused by ()Alow coolant temperatureBinsufficient fuelChigh ambient temperatureDcarbon buildup on the injector ti