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ENVIRONMENTAL ENGINEERING IN CE

Environmental Engineering in CE
Iron & manganese present as pollutant in water can not be removed by

Chlorination
Oxidation followed by settling & filtration
Lime soda process or manganese zeolite process
Ion exchange process

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Environmental Engineering in CE
Which of the following is the most widely used disinfectant in water treatment?

Chlorine
Coagulation
Cation exchanger
Irradiation of water by ultraviolet light

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Environmental Engineering in CE
The widest explosive limit is of __________ , thereby making it the most explosive gas.

Petrol vapor
Carbon monoxide
Acetylene
Hydrogen

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

Silica
Coal
None of these
Iron

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

Uranium ore
Lime
Iron ore
Coal

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