Environmental Engineering The effective size of sand particles used in slow sand filters is 0.35 to 0.60 mm 1.00 to 1.80 mm 0.60 to 1.00 mm 0.25 to 0.35 mm 0.35 to 0.60 mm 1.00 to 1.80 mm 0.60 to 1.00 mm 0.25 to 0.35 mm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Sewage treatment units are normally designed for 28 - 30 years 15 - 20 years 5 - 10 years 15 - 28 years 28 - 30 years 15 - 20 years 5 - 10 years 15 - 28 years ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering For a given discharge, the efficiency of sedimentation tank can be increased by Decreasing the depth of tank Increasing the depth of tank Decreasing the surface area of tank Increasing the surface area of tank Decreasing the depth of tank Increasing the depth of tank Decreasing the surface area of tank Increasing the surface area of tank ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Standard EDTA (ethylene diamine tetra acetic acid) solution is used to determine the Dissolved oxygen in water Residual chlorine in water Hardness in water Turbidity in water Dissolved oxygen in water Residual chlorine in water Hardness in water Turbidity in water 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 Scour valve Check valve Safety valve Sluice valve Scour valve Check valve Safety valve Sluice valve ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Air binding phenomena in rapid sand filters occur due to Mud ball formation Higher turbidity in the effluent Excessive negative head Low temperature Mud ball formation Higher turbidity in the effluent Excessive negative head Low temperature ANSWER DOWNLOAD EXAMIANS APP
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