Q. The minimum size of the smoke particle is ___________

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

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Q. The permissible concentration of PM 10 in the air is ___________

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Q. Which of the following is not a part of photochemical smog?

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Q. Which air pollutant cause corrosion of building?

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Q. Which of the following air pollutant effects plants the most?

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Q. The size of cigarette particles is ______________

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Q. Concentration of fluorine that cause a phototoxicological effect on the plant is ___________

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Q. Which of the following gas is not colorless?

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Q. The effective height of stack is given by ___________

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Q. The chimney is emitting particulate matter. Which of the following is the correct expression of the height of the chimney? Here ‘Kₚ’ represents the emission of particulate matter.

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Q. What is the minimum height of the chimney in a thermal power plant of capacity 350MW?

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Q. Which of the following is the correct expression of the height of chimney emitting sulfur dioxide?

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Q. Coning plume occurs under which conditions?

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Q. In which of the following plumes, stable condition prevails?

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Q. The upward vertical rise prevails in which of the following plume?

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Q. Which of the following plume is worst for the dispersion of pollutants?

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Q. In which of the following plumes, unstable condition prevails?

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Q. Which of the following are contradictory plume?

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Q. The maximum efficiency of the electrostatic precipitator is ___________

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