engineering recuitment UKPSC AE Civil 2021 Mock Test (Re-Exam) Environmental Engineering Air and Noise Pollution
Match the following air pollutants with their respective sources.
|
a. |
Oxides of sulphur |
1. |
Pesticides, pints, laboratory. |
|
b. |
Mercury |
2. |
Petroleum industry wastewater treatment, oil refineries, etc. |
|
c. |
Hydrogen Sulfide |
3. |
Glass and ceramics, cement factories, aluminium industry, fertilizer industry etc. |
|
d. |
Fluorides |
4. |
Power house, smelters, coal and other fossil fuel combustion, etc. |
1
a - 4, b - 1, c - 2, d - 3
2
a - 1, b - 4, c - 2, d - 3
3
a - 4, b - 1, c - 3, d - 2
4
a - 1, b - 4, c - 3, d - 2