Environmental Engineering On standard silica scale, the turbidity in drinking water should be limited to 20 ppm 10 ppm 50 ppm 30 ppm 20 ppm 10 ppm 50 ppm 30 ppm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Scour valves are provided At street corners to control the flow of water At the foot of rising main along the slope to prevent back running of water At every depression and dead ends to drain out the waste water that may collect there At every summit of rising mains At street corners to control the flow of water At the foot of rising main along the slope to prevent back running of water At every depression and dead ends to drain out the waste water that may collect there At every summit of rising mains ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The alum, when added as a coagulant in water Increases pH value of water Does not affect pH value of water Does not require alkalinity in water for flocculation Decreases pH value of water Increases pH value of water Does not affect pH value of water Does not require alkalinity in water for flocculation Decreases pH value of water ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The minimum dissolved oxygen which should always be present in water in order to save the aquatic life is 4 ppm 10 ppm 40 ppm 1 ppm 4 ppm 10 ppm 40 ppm 1 ppm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering A pipe which is installed in the house drainage to preserve the water seal of traps is called Soil pipe Vent pipe Anti-siphonage pipe Waste pipe Soil pipe Vent pipe Anti-siphonage pipe Waste pipe ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The specific gravity of sewage is Much greater than 1 Equal to 1 Slightly greater than 1 Slightly less than 1 Much greater than 1 Equal to 1 Slightly greater than 1 Slightly less than 1 ANSWER DOWNLOAD EXAMIANS APP