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Environmental Engineering in CE

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

Bag filter
Scrubber
Cyclone separator
Electrostatic precipitator

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Environmental Engineering in CE
Tolerable limit of nitrogen oxides in air is __________ ppm.

25
1
0.1
5

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Environmental Engineering in CE
Shouting by a man at his full voice corresponds to a voice level of about __________ decibels.

25
120
80
50

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Environmental Engineering in CE
Which of the following plants does not emit appreciable amount of SO₂ in atmosphere?

Thermal power plant
Nitric acid plant
Sulphuric acid plant
Petroleum refinery

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Environmental Engineering in CE
In the context of the chemical process industries, the term BOD is normally associated with the

Characterisation of solid wastes
Organic concentration in gaseous effluents
Characterisation of liquid effluents
Characterisation of boiler feed water

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Environmental Engineering in CE
Which of the following is the most lethal water pollutant?

Phenol and cynide
Suspended solids
Alkalis
Chlorine

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MORE MCQ ON Environmental Engineering in CE

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