The main industrial source of emission of hydrogen sulphide air pollutant is________________?

Related Mcqs:

1. ‘Safe limit’ called Threshold Limit Value (TLV) of carbon monoxide in atmospheric air is < 50 ppm. The main source of carbon monoxide pollutant in air is the____________________?

   A. Industrial chimney exhaust B. Automobiles exhaust C. Photochemical reaction in polluted atmosphere D. Burning of domestic fuel...

2. Which of the following is not a source of ozone emission in the atmosphere?

   A. Refrigerators B. Xerox machines C. Dermatological photo-therapy equipments D. High voltage electrical equipments...

3. The atomic weight of helium is 4 times that of hydrogen. Its diffusion rate as compared to hydrogen will be _____________ times?

   A. 1/2 B. 4 C. √2 D. 1/4...

4. The main pollutant in waste water discharged from a petroleum refinery is oil (both in free and emulsified form). Free oil is removed by_________________?

   A. Biological oxygen pond B. Aerated lagoons C. Trickling filters D. Gravity separator having oil skimming devices...

5. Which of the following is a secondary air pollutant ?

   A. Photochemical smog B. Sulphur dioxide C. Nitrogen dioxide D. Dust particles...

6. Lead exhausted in the atmosphere by automobiles using leaded petrol (i.e. tetraethyl lead for improving octane number) is a lethal air pollutant which causes_________________?

   A. Paralysis of muscles & loss of appetite B. Nervous depression C. Gastritis and diarrhea D. All A., B. and C....

7. Which of the following is not a secondary air pollutant ?

   A. Ozone B. Photochemical smog C. Sulphur dioxide D. All A., B. & C....

8. Main pollutant present in automobile exhaust is_________________?

   A. CO B. CO2 C. NO D. Hydrocarbons...

9. Which of the following is the most severe air pollutant ?

   A. Hydrocarbons B. NOx C. SO2 D. CO...

10. _____________ plant emits large amount of SO2 as an air pollutant?

    A. Nitric acid B. Sulphuric acid C. Chlor alkali D. Iron & steel...