Environmental Engineering The chemical most commonly used to increase speed of sedimentation of sewage is Sodium permanganate Lime Sulphuric acid Copper sulphate Sodium permanganate Lime Sulphuric acid Copper sulphate ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The most common cause of acidity in water is Nitrogen Carbon dioxide Hydrogen Oxygen Nitrogen Carbon dioxide Hydrogen Oxygen ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Sewage treatment units are normally designed for 28 - 30 years 15 - 28 years 5 - 10 years 15 - 20 years 28 - 30 years 15 - 28 years 5 - 10 years 15 - 20 years ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering If the time of concentration is 9 minutes, then the intensity of rainfall according to British Ministry of Health formula will be 10 mm/hr 4 mm/hr 40 mm/hr 20 mm/hr 10 mm/hr 4 mm/hr 40 mm/hr 20 mm/hr ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The velocity of flow does not depend on Length of sewer Roughness of sewer Grade of sewer Hydraulic mean depth of sewer Length of sewer Roughness of sewer Grade of sewer Hydraulic mean depth of sewer ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Sewage treatment units are designed for Maximum and minimum flow Minimum flow only Average flow only Maximum flow only Maximum and minimum flow Minimum flow only Average flow only Maximum flow only ANSWER DOWNLOAD EXAMIANS APP
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