Q97
The compression ratio in petrol engine is kept less than in Diesel engine because
A.
It makes petrol engines lighter
B.
Higher or equivalent compression ratio in petrol engines is not possible due to pre-ignition
AnswerC.
Less compression ratio gives better performance
D.
It is just customary to have less compression ratio in petrol engines
Answer: Option B
Solution
Answer: Option B
Solution:
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