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__________________?

   A. Cancer
   B. Asthma
   C. Silicosis
   D. Fluorosis (bone disease)

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.