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Environmental Engineering in CE

Environmental Engineering in CE
Pollution by particulate matter emission in the atmosphere does not take place during metal

Cutting
Polishing
Grinding
Machining

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Environmental Engineering in CE
Main pollutant present in automobile exhaust is

CO
Hydrocarbons
NO
CO₂

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

Nervous system disorder
Anaemia
Blood poisoning
All of these

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

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

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Environmental Engineering in CE
Deaeration of high pressure boiler feed water is done to reduce

Its silica content
Its dissolved oxygen content
Caustic embrittlement
Foaming from boilers

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Environmental Engineering in CE
Disinfection of water is done to destroy pathogenic bacteria and thus prevent water-borne diseases. Disinfection of water may be done by the use of

Ozone and iodine
Chlorine or its compounds
All of these
Ultraviolet light for irradiation of water

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