Environmental Engineering The minimum dissolved oxygen which should always be present in water in order to save the aquatic life is 4 ppm 1 ppm 10 ppm 40 ppm 4 ppm 1 ppm 10 ppm 40 ppm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Select the correct relationship between porosity (N), specific yield (y) and specific retention (R) R = N + y y = N + R R > (N + y) N = y + R R = N + y y = N + R R > (N + y) N = y + R ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The settling velocity of a particle in a sedimentation tank depends on None of these Depth of tank Surface area of tank Both depth and surface area of tank None of these Depth of tank Surface area of tank Both depth and surface area of tank ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Disinfection efficiency is Highest at pH value equal to 7 Unaffected by pH value of water Reduced at higher pH value of water Increased at higher pH value of water Highest at pH value equal to 7 Unaffected by pH value of water Reduced at higher pH value of water Increased at higher pH value of water ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The main disadvantage of cement concrete sewers is Difficulty in construction Less strength Less life Difficulty in transportation due to heavy weight Difficulty in construction Less strength Less life Difficulty in transportation due to heavy weight ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The design discharge for the separate sewer system shall be taken as 2 × DWF Equal to dry weather flow (DWF) 6 × DWF 3 × DWF 2 × DWF Equal to dry weather flow (DWF) 6 × DWF 3 × DWF ANSWER DOWNLOAD EXAMIANS APP
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