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Environmental Engineering in CE

Environmental Engineering in CE
Inhalation of lead compounds present in automobile exhaust (using leaded petrol) causes

Nervous system disorder
Blood poisoning
Anaemia
All of these

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Environmental Engineering in CE
Radioactive substances present in the polluted water stream can be removed by

Adsorption in ion exchange materials
Biological oxygen treatment
Coagulation and filtration
None of these

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Environmental Engineering in CE
What is the major constituents of waste/polluted water discharged from textile, pulp & paper, tanning, distillary, dairy and meat packing industries?

Radioactive substances
Inorganic pollutants
Natural organic products
None of these

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Environmental Engineering in CE
Which of the following is the most lethal water pollutant?

Alkalis
Suspended solids
Phenol and cynide
Chlorine

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Environmental Engineering in CE
Reingleman chart No. 2 corresponds to __________ percent black smoke.

20
40
10
80

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Environmental Engineering in CE
The maximum permissible noise level to which a man working in a chemical plant can be exposed for eight hours per day is about __________ decibels.

60
120
90
105

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