Q. The emission of oxides of nitrogen in automobile exhaust will be least when the vehicle is (Solved)
1. Accelerating
2. Idling
3. Cruising at high speed
4. Cruising at low speed
5. Decelerating
- b. Idling
1. Accelerating
2. Idling
3. Cruising at high speed
4. Cruising at low speed
5. Decelerating