Environmental Engineering For satisfactory working of a sludge digestion unit, the pH range of digested sludge should be maintained as 10.5 to 12.0 4.5 to 6.0 8.5 to 10.0 6.5 to 8.0 10.5 to 12.0 4.5 to 6.0 8.5 to 10.0 6.5 to 8.0 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering For a given discharge, the efficiency of sedimentation tank can be increased by Decreasing the depth of tank Decreasing the surface area of tank Increasing the surface area of tank Increasing the depth of tank Decreasing the depth of tank Decreasing the surface area of tank Increasing the surface area of tank Increasing the depth of tank ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The suitable layout of a distribution system for irregularly growing town is Grid iron system Ring system Dead end system Radial system Grid iron system Ring system Dead end system Radial system ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The type of valve, which is provided on the suction pipe in a tube-well, is Sluice valve Pressure relief valve Air relief valve Reflux valve Sluice valve Pressure relief valve Air relief valve Reflux valve ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The commonly used material for water supply pipes, which has the properties of being strong, not easily corroded and long life but is heavy and brittle, is Copper Cast iron Reinforced cement concrete Steel Copper Cast iron Reinforced cement concrete Steel ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering If the sewage contains grease and fatty oils, these are removed in Skimming tanks Grit chambers Sedimentation tanks Detritus tanks Skimming tanks Grit chambers Sedimentation tanks Detritus tanks ANSWER DOWNLOAD EXAMIANS APP
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