EXAMIANS
The per capital consumption of a locality is affected by(i) Climatic conditions(ii) Quality of water(iii) Distribution pressure
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80% less than 200 mesh size particles are called
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Main pollutant present in automobile exhaust is
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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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Reingleman chart No. 2 corresponds to __________ percent black smoke.
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The maximum CO₂ is emitted into the atmosphere by
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The permissible color for domestic water supply is __________ ppm.
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Which is the most practical and economical method for removal of suspended solid matter from polluted water?
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Threshold limit value (TLV) of CO in air is __________ ppm.
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Sulphur dioxide present in the industrial chimney exhaust gases causes
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