-
A diesel engine is usually more efficient than a spark ignition engine because
-
- diesel being a heavier hydrocarbon, releases more heat per kg than gasoline
- the air standard efficiency of diesel cycle is higher than the Otto cycle, at a fixed compression ratio
- the compression ratio of a diesel engine is higher than that of an SI engine
- self ignition temperature of diesel is higher than that of gasoline
Correct Option: C
NA
