Environmental Engineering in CE Maximum permissible residual chlorine in treated water should be __________ mg/litre. 02 to 0.3 0.001 to 0.01 2 to 3 5 to 10 02 to 0.3 0.001 to 0.01 2 to 3 5 to 10 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Black smoke coming out of the chimney of a furnace is an indication of the use of __________ in the furnace. Large quantity of excess combustion air Hydrocarbon fuel Low amount of excess combustion air Pulverised coal as fuel Large quantity of excess combustion air Hydrocarbon fuel Low amount of excess combustion air Pulverised coal as fuel ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Acute danger to human life (i.e. death) exists, if the concentration of CO₂ in atmospheric air exceeds __________ percent (by volume). 7 20 1 3 7 20 1 3 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The Killer gas which caused Bhopal gas tragedy in 1984 was Carbon monoxide Sulphur dioxide Methyl iso-cynate (MIC) Phosgene Carbon monoxide Sulphur dioxide Methyl iso-cynate (MIC) Phosgene ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The earth's atmosphere is an envelope of gases present upto a height of about __________ kms. 200 2000 1000 10 200 2000 1000 10 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Dissolved oxygen content in river water is around __________ ppm. 500 5 250 100 500 5 250 100 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS