Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test Environmental Engineering Air and Noise Pollution
The device, which can be used to control gaseous as well as particulate pollutants in the industrial emissions is known as
1
Spray tower
2
Dynamic precipitator
3
Fabric filter
4
More than one of the above
5
None of the above