Question

If the delay is too short the amount of fuel available for the simultaneous explosion is too great and the resulting pressure rise is too rapid.

(a) True

(b) False

This question was addressed to me in an interview.

My question is taken from Delay Period in chapter Combustion and Combustion Chambers of IC Engine

Answer 1

The correct answer is:

(a) True

If the delay period is too short, the fuel may not have enough time to mix thoroughly with air before combustion, leading to a higher rate of pressure rise. This can result in knocking or abnormal combustion, which is undesirable in an engine as it can cause damage to engine components and reduce efficiency.