1. Maximum allowable Sulfur Dioxide (SO₂) concentration for industrial emissions is:
(A) 100 µg/m³
(B) 250 µg/m³
(C) 750 µg/m³
(D) 500 µg/m³
2. The permissible limit of Nitrogen Oxides (NOx) in industrial emissions is:
(A) 50 µg/m³
(B) 400 µg/m³
(C) 200 µg/m³
(D) 100 µg/m³
3. Maximum allowed Carbon Monoxide (CO) in industrial effluents is:
(A) 10 mg/m³
(B) 15 mg/m³
(C) 25 mg/m³
(D) 50 mg/m³
4. Permissible Particulate Matter (PM10) in industrial emissions is:
(A) 150 µg/m³
(B) 50 µg/m³
(C) 200 µg/m³
(D) 300 µg/m³
5. Maximum Hydrogen Sulfide (H₂S) allowed in gaseous emissions is:
(A) 5 µg/m³
(B) 10 µg/m³
(C) 15 µg/m³
(D) 20 µg/m³
6. Maximum Ammonia (NH₃) emissions permitted for industries is:
(A) 10 µg/m³
(B) 20 µg/m³
(C) 25 µg/m³
(D) 50 µg/m³
7. Industrial Lead (Pb) emission limit is:
(A) 0.5 µg/m³
(B) 1 µg/m³
(C) 5 µg/m³
(D) 2 µg/m³
8. Maximum Volatile Organic Compounds (VOCs) allowed in industrial emissions is:
(A) 50 µg/m³
(B) 200 µg/m³
(C) 150 µg/m³
(D) 100 µg/m³
9. Permissible Ozone (O₃) level for industrial emissions is:
(A) 100 µg/m³
(B) 150 µg/m³
(C) 200 µg/m³
(D) 300 µg/m³
10. Maximum Carbon Dioxide (CO₂) emissions from industries is:
(A) 250 mg/m³
(B) 500 mg/m³
(C) 1000 mg/m³
(D) 1500 mg/m³
11. Industrial emissions of Methane (CH₄) should not exceed:
(A) 100 mg/m³
(B) 200 mg/m³
(C) 300 mg/m³
(D) 500 mg/m³
12. Maximum Nickel (Ni) allowed in gaseous industrial emissions is:
(A) 0.2 µg/m³
(B) 2 µg/m³
(C) 1 µg/m³
(D) 0.5 µg/m³
13. The allowable Cadmium (Cd) emissions from industry is:
(A) 0.01 µg/m³
(B) 0.1 µg/m³
(C) 0.05 µg/m³
(D) 0.2 µg/m³
14. Maximum permissible Benzene in industrial emissions is:
(A) 5 µg/m³
(B) 1 µg/m³
(C) 10 µg/m³
(D) 15 µg/m³
15. Permissible Arsenic (As) emissions from industries is:
(A) 0.01 µg/m³
(B) 0.05 µg/m³
(C) 0.5 µg/m³
(D) 0.1 µg/m³
16. Maximum Mercury (Hg) allowed in industrial gaseous emissions is:
(A) 0.01 µg/m³
(B) 0.1 µg/m³
(C) 0.05 µg/m³
(D) 0.2 µg/m³
17. Industrial Chromium (Cr) emissions limit is:
(A) 0.05 µg/m³
(B) 0.1 µg/m³
(C) 1 µg/m³
(D) 0.5 µg/m³
18. Maximum permissible Copper (Cu) emissions in industry is:
(A) 0.5 µg/m³
(B) 0.1 µg/m³
(C) 1 µg/m³
(D) 2 µg/m³
19. Maximum Hydrogen Chloride (HCl) in industrial emissions is:
(A) 20 mg/m³
(B) 10 mg/m³
(C) 5 mg/m³
(D) 50 mg/m³
20. Permissible Smoke Density for industrial stacks is:
(A) 1 Ringelmann
(B) 2 Ringelmann
(C) 3 Ringelmann
(D) 4 Ringelmann