Automobile Engineering in ME
The crankcase dilution means

Dilution of oil by water in the crankcase
Dilution of mixture passing through crankcase in two stroke engines
Dilution of fuel in the crankcase
Dilution of lubrication oil by fuel in the crankcase D. Dilution

ANSWER DOWNLOAD EXAMIANS APP

Automobile Engineering in ME
The compression ratio in petrol engine is kept less than in Diesel engine because

Higher or equivalent compression ratio in petrol engines is not possible due to pre-ignition
Less compression ratio gives better performance
It makes petrol engines lighter
It is just customary to have less compression ratio in petrol engines

ANSWER DOWNLOAD EXAMIANS APP