McqMate
| Q. |
A blue smoke from a diesel engine indicates presence of |
| A. | Nitrous oxide |
| B. | Carbon dioxide |
| C. | Carbon monoxide |
| D. | Unburnt oil |
| E. | Unburnt carbon |
| Answer» D. Unburnt oil | |
View all MCQs in
Environmental EngineeringNo comments yet