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Environmental Engineering in CE

Environmental Engineering in CE
Fresh sewage is __________ in nature.

Alkaline
Neutral
Acidic
Highly acidic

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Environmental Engineering in CE
__________ is the process of killing organism in water.

Sedimentation
Disinfection
Coagulation
Sterilisation

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Environmental Engineering in CE
Presence of __________ in water stream are deleterious to aquatic life.

All of these
Suspended solids
Heavy metals and cynides
Soluble and toxic organics

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Environmental Engineering in CE
Very small amount of air pollutants are present in stratosphere also; though most of the atmospheric pollutants are present in the troposphere. Which of the following atmospheric pollutants does not cause the ozone layer depletion in atmosphere at tremendous rate?

CO
CFC (chloro fluoro carbons)
SO₂
NOx

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Environmental Engineering in CE
Dust collection efficiency of a cyclone separator depends upon its

All of these
Inlet gas velocity
Diameter
Overall height

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Environmental Engineering in CE
Ozone is

Impervious to ultra-violet rays
Both B & C
A primary pollutant
A secondary pollutant

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MORE MCQ ON Environmental Engineering in CE

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