EXAMIANS
Removal of __________ results from the disinfection of water.
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Salt content in sea water is about __________ percent.
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The permissible color for domestic water supply is __________ ppm.
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Hazardous/polluting chemical industries should have an 'exclusion zone' with a green belt and general public access prohibited around it, covering a radius of ____ metres.
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Shouting by a man at his full voice corresponds to a voice level of about __________ decibels.
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Which is the most widely used coagulant for the treatment of turbid water?
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TLV of mercury in potable (drinking) water is about __________ ppm.
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Presence of volatile compounds like gasoline, oil, alcohol, ether etc. in municipal sewers may cause
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Average human body contains about __________ percent water by weight.
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Death may occur, when SO₂ concentration in atmospheric air exceeds __________ ppm.
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