Environmental Engineering If the time of concentration is 9 minutes, then the intensity of rainfall according to British Ministry of Health formula will be 4 mm/hr 20 mm/hr 40 mm/hr 10 mm/hr 4 mm/hr 20 mm/hr 40 mm/hr 10 mm/hr 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 N = y + R R > (N + y) R = N + y y = N + R N = y + R R > (N + y) ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The type of valve which is provided to control the flow of water in the distribution system at street corners and where the pipe lines intersect is Check valve Scour valve Sluice valve Safety valve Check valve Scour valve Sluice valve Safety valve ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Air binding phenomena in rapid sand filters occur due to Higher turbidity in the effluent Low temperature Excessive negative head Mud ball formation Higher turbidity in the effluent Low temperature Excessive negative head Mud ball formation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The design discharge for the combined sewer system shall be taken as Rainfall + DWF Rainfall + 6 DWF Rainfall + 2 DWF Equal to rainfall Rainfall + DWF Rainfall + 6 DWF Rainfall + 2 DWF Equal to rainfall ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The hourly variation factor is usually taken as 2.7 2.0 1.5 1.8 2.7 2.0 1.5 1.8 ANSWER DOWNLOAD EXAMIANS APP
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