Environmental Engineering Air binding phenomena in rapid sand filters occur due to Excessive negative head Mud ball formation Low temperature Higher turbidity in the effluent Excessive negative head Mud ball formation Low temperature Higher turbidity in the effluent ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The settling velocity of a particle in a sedimentation tank increases if The surface area of tank is increased None of these The depth of tank is decreased Particle size is decreased The surface area of tank is increased None of these The depth of tank is decreased Particle size is decreased ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering As compared to cast iron pipes, steel pipes are Less susceptible to corrosion Costlier Stronger Heavier Less susceptible to corrosion Costlier Stronger Heavier ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Generally the detention period for grit chambers is kept as 5 minutes 1 minute 24 hours 12 hours 5 minutes 1 minute 24 hours 12 hours ANSWER DOWNLOAD EXAMIANS APP
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 The water carriage system of collection of waste product All of these Requires treatment before disposal Is cheaper in initial cost than dry conservancy system Creates hygienic problem All of these Requires treatment before disposal Is cheaper in initial cost than dry conservancy system Creates hygienic problem ANSWER DOWNLOAD EXAMIANS APP
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