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Environmental Engineering in CE

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

All of these
Diameter
Inlet gas velocity
Overall height

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Environmental Engineering in CE
Which of the following air pollutants is not toxic to vegetation i.e., doesn't cause vegetation damage?

Carbon monoxide
Smog & ozone
Hydrogen fluoride & nitrogen oxides
Sulphur dioxide & spray of weed killers

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Environmental Engineering in CE
Most of the atmospheric air pollutants are present in large quantity in

Mesosphere
Stratosphere
Trophosphere
Thermosphere

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Environmental Engineering in CE
A man exposed to excessive noise level in the working environment may suffer from

Rupture of ear drum
All of these
Nervousness & fatigue
Hearing loss

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Environmental Engineering in CE
During sewage treatment, the sewage is subjected to __________ treatment in Imhoff tank.

Filtration
Both B and C
Sedimentation
Digestion

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Environmental Engineering in CE
Industrial workers working in leather tanning & manufacturing units are prone to suffer from

Blurred vision
Silicosis
Respirtory ailments (e.g. bronchitis)
Skin diseases (e.g. dermatities)

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