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Environmental Engineering in CE

Environmental Engineering in CE
Color test of water is done with an instrument called

Electro-chemical cell
Turbidimeter
Colorimeter
Tintometer

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Environmental Engineering in CE
Most of the bacteria in sewage are

Parasitic
None of these
Anerobic
Saprophytic

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Environmental Engineering in CE
The type of bacteria which is active in trickling filter during biological treatment of sewage is the __________ bacteria.

Parasitic
Aerobic
Saphrophytic
Anaerobic

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Environmental Engineering in CE
__________ is removed from water by lime-soda process.

Foul smell and taste
Iron and manganese
Permanent hardness
Temporary hardness

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Environmental Engineering in CE
The main industrial source of emission of hydrogen sulphide air pollutant is

Coal based thermal power plants
Metallurgical roasting & smelting plant
Petroleum refineries
Pulp and paper plant

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Environmental Engineering in CE
Disinfection of water is done to remove

Color
Bad taste
Foul odour
Bacteria

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MORE MCQ ON Environmental Engineering in CE

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