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Environmental Engineering in CE

Environmental Engineering in CE
Which of the following pollutants is absent in the emissions from a fertiliser plant ?

NO₂
NH₃
SO₂ & SO₃
CO

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Environmental Engineering in CE
Presence of __________ hardness is responsible for the temporary hardness in water.

Choride
Carbonate
Sulphate
Calcium

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Environmental Engineering in CE
In troposphere (the weather domain), the temperature 't' at height 'h' above the spa level in metres is given by (where, temperature at sea level is 15°C and t is in °C.)

t = 15 - 0.0035h
t = 0.0035h -15
t = 15 + 0.0065h
t = 15 - 0.0065h

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Environmental Engineering in CE
A considerable part of the harmful ultraviolet radiation of the sum does not reach the earth surface, because of the fact that, there is a layer of __________ high above earth's atmosphere, which absorbs it.

Carbon dioxide
Ozone
None of these
Hydrogen

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Environmental Engineering in CE
Which of the following fine dust removal equipments is the most efficient?

Bag filter
Electrostatic precipitator
Cyclone separator
Scrubber

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Environmental Engineering in CE
The principal gas evolved from sludge digestion tank is

CH₄
N₂
CO
CO₂

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MORE MCQ ON Environmental Engineering in CE

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