Which of the following increase the diesel knocking tendency?
1. Decreased compression ratio
2. Decreased engine speed
3. Retarded injection timing
4. Supercharging
1
1 only
2
2 only
3
2 and 3
4
3 and 4
Which of the following increase the diesel knocking tendency?
1. Decreased compression ratio
2. Decreased engine speed
3. Retarded injection timing
4. Supercharging