| Q.67 | A ______________ is generally placed inside the tail exhaust pipe of the automobile to control the air pollution due to partially oxidized emissions. | |
| Ans | 1. Catalytic convertor. | |
| 2. Fabric filter. | ||
| 3. Electrostatic precipitator. | ||
| 4. Cyclone collector. |
Correct Ans Provided: 1