Environmental Engineering Sewage treatment units are designed for Maximum flow only Average flow only Minimum flow only Maximum and minimum flow Maximum flow only Average flow only Minimum flow only Maximum and minimum flow ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering As compared to rapid sand filters, slow sand filters give (i) Slower filtration rate (ii) Higher filtration rate (iii) Lesser efficiency in removal of bacteria (iv) Higher efficiency in removal of bacteria The correct answer is (ii) and (iv) (ii) and (iii) (i) and (iv) (i) and (ii) (ii) and (iv) (ii) and (iii) (i) and (iv) (i) and (ii) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Activated carbon is used for Removing corrosiveness Removing hardness Disinfection Removing odours Removing corrosiveness Removing hardness Disinfection Removing odours ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering For satisfactory working of a sludge digestion unit, the pH range of digested sludge should be maintained as 6.5 to 8.0 8.5 to 10.0 10.5 to 12.0 4.5 to 6.0 6.5 to 8.0 8.5 to 10.0 10.5 to 12.0 4.5 to 6.0 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The alum, when added as a coagulant in water Decreases pH value of water Does not require alkalinity in water for flocculation Does not affect pH value of water Increases pH value of water Decreases pH value of water Does not require alkalinity in water for flocculation Does not affect pH value of water Increases pH value of water ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The type of sewer which is suitable for both combined and separate system is Horseshoe type sewer Circular sewer Egg shaped sewer Semi-elliptical sewer Horseshoe type sewer Circular sewer Egg shaped sewer Semi-elliptical sewer ANSWER DOWNLOAD EXAMIANS APP
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