Environmental Engineering The percentage of chlorine in fresh bleaching powder is about 20 to 25 40 to 50 30 to 35 10 to 15 20 to 25 40 to 50 30 to 35 10 to 15 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The velocity of flow of water in a sedimentation tank is about 15 to 30 cm/sec 15 to 30 cm/minute 5 to 10 cm/sec 15 to 30 cm/hour 15 to 30 cm/sec 15 to 30 cm/minute 5 to 10 cm/sec 15 to 30 cm/hour ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Settling velocity increases with Size of particles Specific gravity of solid particles Temperature of liquid Depth of tank Size of particles Specific gravity of solid particles Temperature of liquid Depth of tank ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Which of the following unit works in anaerobic conditions? Trickling filters Activated sludge treatment Sedimentation tank Sludge digestion tank Trickling filters Activated sludge treatment Sedimentation tank Sludge digestion tank ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Septic tank is a (i) Settling tank (ii) Digestion tank (iii) Aeration tank (i) and (ii) Only (iii) Only (i) (i) and (iii) (i) and (ii) Only (iii) Only (i) (i) and (iii) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering When there is no recirculation of sewage, then recirculation factor is 1 None of these Infinity 1 None of these Infinity ANSWER DOWNLOAD EXAMIANS APP