Environmental Engineering The treatment of water with bleaching powder is known as De-chlorination Pre-chlorination Super chlorination Hypo-chlorination De-chlorination Pre-chlorination Super chlorination Hypo-chlorination ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The amount of coagulant needed for coagulation of water increases with (i) Increase in turbidity of water (ii) Decrease in turbidity of water (iii) Increase in temperature of water (iv) Decrease in temperature of water The correct answer is (ii) and (iv) (i)and(iv) (i) and (ii) (ii) and (iii) (ii) and (iv) (i)and(iv) (i) and (ii) (ii) and (iii) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The rate of filtration in slow sand filters in million litres per day per hectare is about 100 to 150 500 to 600 1400 to 1500 50 to 60 100 to 150 500 to 600 1400 to 1500 50 to 60 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The working conditions in imhoff tanks are Aerobic in lower compartment and anaerobic in upper compartment Anaerobic only Aerobic only anaerobic in lower compartment and aerobic in upper compartment Aerobic in lower compartment and anaerobic in upper compartment Anaerobic only Aerobic only anaerobic in lower compartment and aerobic in upper compartment ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Which of the following chemical compounds can be used for de-chlorination of water? Carbon dioxide Bleaching powder Sulphur dioxide Chloramines Carbon dioxide Bleaching powder Sulphur dioxide Chloramines ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Standard BOD is measured at 20°C - 5 day 25°C - 3 day 30°C - 5 day 20°C - 1 day 20°C - 5 day 25°C - 3 day 30°C - 5 day 20°C - 1 day ANSWER DOWNLOAD EXAMIANS APP
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