Environmental Engineering The velocity of flow of water in a sedimentation tank is about 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 15 to 30 cm/sec ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Sewage treatment units are normally designed for 15 - 20 years 15 - 28 years 5 - 10 years 28 - 30 years 15 - 20 years 15 - 28 years 5 - 10 years 28 - 30 years ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Corrosion in concrete sewers is caused by Chlorine Nitrogen Septic conditions Dissolved oxygen Chlorine Nitrogen Septic conditions Dissolved oxygen ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The percentage of chlorine in fresh bleaching powder is about 40 to 50 20 to 25 10 to 15 30 to 35 40 to 50 20 to 25 10 to 15 30 to 35 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The suitable layout of distribution system for a city with roads of rectangular pattern is Dead end system Grid iron system Radial system Ring system Dead end system Grid iron system Radial system Ring system ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The type of sewer which is suitable for both combined and separate system is Semi-elliptical sewer Circular sewer Horseshoe type sewer Egg shaped sewer Semi-elliptical sewer Circular sewer Horseshoe type sewer Egg shaped sewer ANSWER DOWNLOAD EXAMIANS APP
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