Environmental Engineering Which of the following unit works in anaerobic conditions? Trickling filters Sludge digestion tank Activated sludge treatment Sedimentation tank Trickling filters Sludge digestion tank Activated sludge treatment Sedimentation tank ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering In chlorination, with the rise in temperature of water, death rate of bacteria Remains unaffected Decreases Increases None of these Remains unaffected Decreases Increases None of these 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) (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 process in which the chlorination is done beyond the break point is known as Break point chlorination Post chlorination Pre-chlorination Super chlorination Break point chlorination Post chlorination Pre-chlorination Super chlorination ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering An egg shaped section of sewer Is more stable than circular section Is easy to construct Provides self cleansing velocity at low discharges Is economical than circular section Is more stable than circular section Is easy to construct Provides self cleansing velocity at low discharges Is economical than circular section ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The settling velocity of a particle in a sedimentation tank depends on Surface area of tank Both depth and surface area of tank Depth of tank None of these Surface area of tank Both depth and surface area of tank Depth of tank None of these ANSWER DOWNLOAD EXAMIANS APP
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