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Environmental Engineering in CE

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

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

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Environmental Engineering in CE
If the coli form bacteria is present in a sample of water, then the coli-form test to be conducted is(i) Presumptive coli-form test(ii) Confirmed coli-form test(iii) Completed coli-form test

Both (i) and (ii)
Both (i) and (iii)
Only (i)
All (i), (ii) and (iii)

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

Filtration
Sedimentation
Digestion
Both B and C

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Environmental Engineering in CE
Inorganic impurities causing water pollution is

Protein
Carbohydrates
Fats
Salts of metals

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Environmental Engineering in CE
Which of the following is a manmade source of air pollution?

All of these
Automobile exhaust
Bacterial action in soil and swamp areas
Forest fire

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Environmental Engineering in CE
Particulates (< 1μm size) remaining suspended in air indefinitely and transported by wind currents are called

Aerosols
Smoke
Fumes
Mists

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