Q. In a four stroke S.I engine the exhaust valve usually opens (Solved)
1. 35? to 60? after BDC
2. 35? to 60? before BDC
3. At BDC
4. 10? to 20? before TDC
5. At TDC
- b. 35? to 60? before BDC
1. 35? to 60? after BDC
2. 35? to 60? before BDC
3. At BDC
4. 10? to 20? before TDC
5. At TDC