Environmental Engineering The biochemical treatment of sewage effluents is essentially a process of Oxidation Alkalinization Dehydration Reduction Oxidation Alkalinization Dehydration Reduction ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Sewage treatment units are normally designed for 5 - 10 years 15 - 20 years 15 - 28 years 28 - 30 years 5 - 10 years 15 - 20 years 15 - 28 years 28 - 30 years ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The velocity of flow does not depend on Hydraulic mean depth of sewer Length of sewer Roughness of sewer Grade of sewer Hydraulic mean depth of sewer Length of sewer Roughness of sewer Grade of sewer ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Select the correct relationship between porosity (N), specific yield (y) and specific retention (R) N = y + R R = N + y y = N + R R > (N + y) N = y + R R = N + y y = N + R R > (N + y) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The hydraulic mean depth (HMD) for an egg-shaped sewer flowing two-third full is Less than HMD when flowing full Equal to HMD when flowing full Greater than HMD when flowing full None of these Less than HMD when flowing full Equal to HMD when flowing full Greater than HMD when flowing full None of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Cleaning is done by (i) Scraping and removal in filters slow sand (ii) Back washing in slow sand filters (iii) Scraping and removal in filters rapid sand (iv) Back washing in rapid sand filters The correct answer is (ii) and (iii) (ii) and (iv) (i) and (ii) (i) and (iv) (ii) and (iii) (ii) and (iv) (i) and (ii) (i) and (iv) ANSWER DOWNLOAD EXAMIANS APP
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