Environmental Engineering in CE Presence of excess flourine in water causes Respiratory disease Tooth decay Dental cavity Fluorosis Respiratory disease Tooth decay Dental cavity Fluorosis ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Which of the following is the most lethal water pollutant? Alkalis Suspended solids Phenol and cynide Chlorine Alkalis Suspended solids Phenol and cynide Chlorine ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE In the context of the chemical process industries, the term BOD is normally associated with the Characterisation of solid wastes Organic concentration in gaseous effluents Characterisation of liquid effluents Characterisation of boiler feed water Characterisation of solid wastes Organic concentration in gaseous effluents Characterisation of liquid effluents Characterisation of boiler feed water ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The maximum permissible noise level to which a man working in a chemical plant can be exposed for eight hours per day is about __________ decibels. 90 120 105 60 90 120 105 60 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Presence of __________ in water stream are deleterious to aquatic life. All of these Suspended solids Soluble and toxic organics Heavy metals and cynides All of these Suspended solids Soluble and toxic organics Heavy metals and cynides ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Coal mines drainage waste water (acidic in nature) results from the earth's water percolating through the voids created in coal bed during mining. This polluted water which either drains out naturally to water courses or are removed before starting the mining is Neutralised by alkali treatment None of these Left as such without any treatment Diluted with fresh water to reduce its acidity Neutralised by alkali treatment None of these Left as such without any treatment Diluted with fresh water to reduce its acidity ANSWER DOWNLOAD EXAMIANS APP
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