engineering recuitment ISRO Scientist Mechanical Mock Test Internal Combustion Engine Knocking and Detonation
Which of the following statements are correct for ‘Diesel knock’?
1. A long ignition delay period increases tendency of Diesel knock.
2. The Diesel knock occurs near the end of combustion.
3. The rate of pressure rise in Diesel knock is lower than in detonation in spark ignition engines.1
1, 2 and 3
2
1 and 2 only
3
2 and 3 only
4
1 and 3 only