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ENVIRONMENTAL ENGINEERING IN CE QUIZ

Aerobic biological oxidation ponds used for the purification of polluted water

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Removal of __________ is accomplished by aeration of water.

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80% less than 200 mesh size particles are called

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Hydrogen ion concentration in distilled water is

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Pick out the one which is not a chemical coagulant.

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The detrimental effect on organism and water quality with temperature rise of aquatic system is the reduction of __________ of water.

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Operating principle of cyclone separator is based on the action of __________ dust particles.

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Ambient noise level can be reduced by __________ decibels by planting trees (like coconut, neem etc.) near public utility buildings (like hospitals & schools).

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Which of the following dust collection equipments is the least efficient (for sub-micronic particles)?

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As per the world health organisation (WHO) specification, the maximum permissible concentration (i.e., TLV) of particulate matter in air is __________ μg/m³.(μg-microgram)

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