Environmental Engineering in CE Noise level in a quiet private business office is about __________ decibels. 25 70 85 50 25 70 85 50 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE The type of bacteria which is active in trickling filter during biological treatment of sewage is the __________ bacteria. Saphrophytic Parasitic Anaerobic Aerobic Saphrophytic Parasitic Anaerobic Aerobic ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Persons working in cement plants and limestone quarries are more prone to disease like Flourosis (bone disease) Silicosis Cancer Asthma Flourosis (bone disease) Silicosis Cancer Asthma ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Maximum permissible residual chlorine in treated water should be __________ mg/litre. 0.001 to 0.01 5 to 10 2 to 3 02 to 0.3 0.001 to 0.01 5 to 10 2 to 3 02 to 0.3 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Phenolic water generated in coke ovens & by-product plant of a steel plant are disposed off by Discharging in the river stream None of these Filtration and recycling for cooling coke oven gas Quenching of hot coke Discharging in the river stream None of these Filtration and recycling for cooling coke oven gas Quenching of hot coke ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering in CE Polluted water having low BOD are most economically treated in Oxidation ponds Sedimentation tanks Sludge digester Clarifier Oxidation ponds Sedimentation tanks Sludge digester Clarifier ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS