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Environmental Engineering in CE

Environmental Engineering in CE
The maximum CO₂ is emitted into the atmosphere by

Combustion
Trees
Urea
Biomass burning

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Environmental Engineering in CE
A gas is termed as non-toxic, if its maximum permissible concentration (TLV) ranges from __________ ppm.

3000 to 6000
10000 to 100000
1000 to 2000
6000 to 9000

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

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

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

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Environmental Engineering in CE
Aerosols present in atmospheric air may be

Negatively charged
Positively charged
Combination of all A, B & C
Neutral

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Environmental Engineering in CE
Presence of nitrates in water in excess of 50 ppm causes

Mathenoglobenemia
Asphyxiation
Tooth decay
Gastroentetitis

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