Environmental Engineering in CE Maximum permissible concentration (i.e. TLV) of DDT in public water supply system is __________ micro gram (μ g)/litre. 1050 2 332 42 1050 2 332 42 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Sound produced by an automobile horn heard at a distance of 1.5 metres corresponds to about __________ decibels. 90 150 120 180 90 150 120 180 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE In water chemical treatment plant, use of chloramines ensures Removal of permanent hardness Taste & odour control Weed control in reservoirs Disinfection Removal of permanent hardness Taste & odour control Weed control in reservoirs Disinfection ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE 'Pneumoconiosis' is a disease caused by the inhalation of __________ dust. Lime Coal Uranium ore Iron ore Lime Coal Uranium ore Iron ore ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE A gas is termed as non-toxic, if its maximum permissible concentration (TLV) ranges from __________ ppm. 1000 to 2000 3000 to 6000 6000 to 9000 10000 to 100000 1000 to 2000 3000 to 6000 6000 to 9000 10000 to 100000 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Disinfection of water is done to remove Bacteria Bad taste Color Foul odour Bacteria Bad taste Color Foul odour ANSWER DOWNLOAD EXAMIANS APP
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