railway RRB JE (CBT I + CBT II) Mock Test 2024 Internal Combustion Engine IC Engine Cycles Diesel Cycle
A diesel engine is usually more efficient than a spark ignition engine because
1
Diesel being heavier hydrocarbon, releases more heat per kg than gasoline
2
The air standard efficiency of diesel cycle is higher than the Otto cycle, at a fixed compression ratio
3
The compression ratio of a diesel engine is higher than that of an SI engine
4
Self-ignition temperature of diesel is higher than that of gasoline