Environmental Engineering The percentage of chlorine in fresh bleaching powder is about 30 to 35 10 to 15 40 to 50 20 to 25 30 to 35 10 to 15 40 to 50 20 to 25 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The treatment of water with bleaching powder is known as De-chlorination Hypo-chlorination Pre-chlorination Super chlorination De-chlorination Hypo-chlorination Pre-chlorination Super chlorination ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Sewerage system is designed for Average flow only Maximum and minimum flow Maximum flow only Minimum flow only Average flow only Maximum and minimum flow Maximum flow only Minimum flow only ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering If the total hardness of water is greater than its total alkalinity, the carbonate hardness will be equal to Total hardness total alkalinity Total alkalinity Non carbonate hardness Total hardness Total hardness total alkalinity Total alkalinity Non carbonate hardness Total hardness ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Generally the detention period for grit chambers is kept as 12 hours 24 hours 1 minute 5 minutes 12 hours 24 hours 1 minute 5 minutes 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 (i) and (ii) (ii) and (iii) (i)and(iv) (ii) and (iv) (i) and (ii) (ii) and (iii) (i)and(iv) (ii) and (iv) ANSWER DOWNLOAD EXAMIANS APP
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