Environmental Engineering On standard silica scale, the turbidity in drinking water should be limited to 20 ppm 30 ppm 10 ppm 50 ppm 20 ppm 30 ppm 10 ppm 50 ppm 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 Steel Cast iron Reinforced cement concrete Copper Steel Cast iron Reinforced cement concrete ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The percentage of filtered water, which is used for backwashing in rapid sand filters, is about 2 to 4 5 to 7 0.2 to 0.4 0.4 to 1.0 2 to 4 5 to 7 0.2 to 0.4 0.4 to 1.0 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The rate of Alteration of pressure filters is Equal to that of slow sand filters In between the filtration rate of slow sand filters and rapid sand filters Greater than that of rapid sand filters Less than that of slow sand filters Equal to that of slow sand filters In between the filtration rate of slow sand filters and rapid sand filters Greater than that of rapid sand filters Less than that of slow sand filters ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The hourly variation factor is usually taken as 2.0 1.5 1.8 2.7 2.0 1.5 1.8 2.7 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The method of analysis of distribution system in which the domestic supply is neglected and fire demand is considered is Circle method Electrical analysis method Hardy cross method Equivalent pipe method Circle method Electrical analysis method Hardy cross method Equivalent pipe method ANSWER DOWNLOAD EXAMIANS APP
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