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Environmental Engineering in CE

Environmental Engineering in CE
Noise pollution level in a chemical plant is expressed in

Roentgen
Decibel
Hertz
None of these

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Environmental Engineering in CE
Which of the following acts as a natural source of air pollution?

None of these
Volcanic eruption
Deforestation
Forest fire

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Environmental Engineering in CE
A 'body' which allows the short wavelength incoming solar radiation to enter in, but does not allow long wave length outgoing infra red radiation to escape out is called the

Atmospheric effect
Global warming
Green house
Ionosphere

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Environmental Engineering in CE
Water filtration rate in a rapid sand filter ranges from __________ kilolitres/m²/hr.

10 to 15
15 to 20
3 to 6
0.1 to 1

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Environmental Engineering in CE
The length of rectangular sedimentation tank should not be more than(Where ‘B’ is the width of the tank)

B
2B
4B
8B

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Environmental Engineering in CE
Moist atmospheric air at high temperature (e.g., in summer) having high concentration of sulphur dioxide causes

Corrosion, tarnishing & soiling of metals
Reduced strength of textiles
Fading of dyes on textiles
All of these

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