Which of the following is the common pollutant emitted from metallurgical smelters, thermal power plant and cement plants ?

Related Mcqs:

1. Most efficient and suitable dust removal equipment for removal of fly-ash from flue gas in a thermal power plant is the__________________?

   A. Gravity settling chamber B. Cyclone separator C. Electrostatic precipitator D. Bag filter...

2. ______________ content of the phosphate rock is the pollutant of primary interest in a phosphatic fertiliser plant ?

   A. Calcium B. Fluorine C. Phosphorous D. Sulphur...

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

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

4. The common pollutant generated in chlor-alkali industry and battery manufacture is ___________________?

   A. Mercury B. Brine C. Phosphate D. None of these...

5. Persons working in cement plants and limestone quarries are more prone to disease like__________________?

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6. The maximum CO2 is emitted into the atmosphere by_________________?

   A. Combustion B. Urea C. Biomass burning D. Trees...

7. Noise emitted by a ventilation fan at a distance of 3 metres is about _____________ decibels?

   A. 85 B. 105 C. 125 D. 145...

8. Which of the following is not a weightless pollutant ?

   A. SPM B. Thermal pollution C. Radioactive rays D. Noise pollution...

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

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

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

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