Environmental Engineering For a given discharge, the efficiency of sedimentation tank can be increased by Decreasing the surface area of tank Increasing the depth of tank Decreasing the depth of tank Increasing the surface area of tank Decreasing the surface area of tank Increasing the depth of tank Decreasing the depth of tank Increasing the surface area of tank ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The rate of BOD exerted at any time is Directly proportional to BOD remaining Directly proportional to BOD satisfied Inversely proportional to BOD remaining Inversely proportional to BOD satisfied Directly proportional to BOD remaining Directly proportional to BOD satisfied Inversely proportional to BOD remaining Inversely proportional to BOD satisfied ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Standard BOD is measured at 30°C - 5 day 20°C - 1 day 20°C - 5 day 25°C - 3 day 30°C - 5 day 20°C - 1 day 20°C - 5 day 25°C - 3 day ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The amount of residual chlorine left in public water supply for safety against pathogenic bacteria is about 1.0 to 5.0 ppm 0.05 to 0.5 ppm 0.5 to 1.0 ppm 0.01 to 0.05 ppm 1.0 to 5.0 ppm 0.05 to 0.5 ppm 0.5 to 1.0 ppm 0.01 to 0.05 ppm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering If the total hardness of water is greater than its total alkalinity, the carbonate hardness will be equal to Total alkalinity Non carbonate hardness Total hardness total alkalinity Total hardness Total alkalinity Non carbonate hardness Total hardness total alkalinity Total hardness ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The pipe which is used to carry the discharge from sanitary fittings like bath rooms, kitchens etc. is called Anti-siphonage pipe Soil pipe Vent pipe Waste pipe Anti-siphonage pipe Soil pipe Vent pipe Waste pipe ANSWER DOWNLOAD EXAMIANS APP
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