Environmental Engineering in CE Maximum permissible concentration (i.e. TLV) of DDT in public water supply system is __________ micro gram (μ g)/litre. 2 1050 332 42 2 1050 332 42 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Tolerable limit of nitrogen oxides in air is __________ ppm. 1 5 0.1 25 1 5 0.1 25 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The resistance of water to the passage of light through it is a measure of the Dissolved gases Color Hardness Turbidity Dissolved gases Color Hardness Turbidity ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Lagooning process is mainly a means of the None of these Sludge disposal Biological treatment of wastes Reduction of excessive flow in sewers None of these Sludge disposal Biological treatment of wastes Reduction of excessive flow in sewers ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Disinfection of water is done to destroy pathogenic bacteria and thus prevent water-borne diseases. Disinfection of water may be done by the use of Chlorine or its compounds All of these Ultraviolet light for irradiation of water Ozone and iodine Chlorine or its compounds All of these Ultraviolet light for irradiation of water Ozone and iodine ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE 'Safe limit' called Threshold Limit Value (TLV) of carbon monoxide in atmospheric air is < 50 ppm. The main source of carbon monoxide pollutant in air is the Industrial chimney exhaust Photochemical reaction in polluted atmosphere Burning of domestic fuel Automobiles exhaust Industrial chimney exhaust Photochemical reaction in polluted atmosphere Burning of domestic fuel Automobiles exhaust ANSWER DOWNLOAD EXAMIANS APP
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