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Environmental Engineering in CE

Environmental Engineering in CE
Siderosis is a disease caused by the inhalation of __________ dust.

Iron
None of these
Silica
Coal

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Environmental Engineering in CE
Which of the following is not an air pollutant?

Metallic powders
Pesticides
Carcinogens
Ozone

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Environmental Engineering in CE
Threshold limit value (TLV) means maximum permissible/acceptable concentration. TLV of phosgene in air is about __________ ppm (parts per million).

0.2
4.8
0.002
1.2

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Environmental Engineering in CE
Presence of __________ bacteria in water causes disease like typhoid.

Anaerobic
Aerobic
Pathogenic
Non-pathogenic

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Environmental Engineering in CE
The major reason of hydrodynamic noise (i.e., noise resulting from liquid flow) is

Boundary layer separation
Pipe vibrations
Cavitation
Fluctuation in liquid flow

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Environmental Engineering in CE
Pick out the one which is not a chemical coagulant.

Hydrated lime
Chloramine
Aluminium sulphate
Ferrous sulphate

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MORE MCQ ON Environmental Engineering in CE

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