Environmental Engineering For the same solid content, if the quantity of sludge with moisture content of 98% is X, then the quantity of sludge with moisture content of 96% will be 2X X/4 X X/2 2X X/4 X X/2 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The overflow rate for plain sedimentation tanks is about 1250 to 1500 liters/hour/m² 500 to 750 liters/hour/ m² 1500 to 2000 liters/hour/m² 1000 to 1250 liters/hour/ m² 1250 to 1500 liters/hour/m² 500 to 750 liters/hour/ m² 1500 to 2000 liters/hour/m² 1000 to 1250 liters/hour/ m² ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering In a BOD test, 1.0 ml of raw sewage was diluted to 100 ml and the dissolved oxygen concentration of diluted sample at the beginning was 6 ppm and it was 4 ppm at the end of 5 day incubation at 20°C. The BOD of raw sewage will be 300 ppm 100 ppm 200 ppm 400 ppm 300 ppm 100 ppm 200 ppm 400 ppm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Laying of sewers is usually done with the help of Sight rails and boning rods A Theodolite A compass A plane table Sight rails and boning rods A Theodolite A compass A plane table 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 For satisfactory working of a sludge digestion unit, the pH range of digested sludge should be maintained as 4.5 to 6.0 6.5 to 8.0 10.5 to 12.0 8.5 to 10.0 4.5 to 6.0 6.5 to 8.0 10.5 to 12.0 8.5 to 10.0 ANSWER DOWNLOAD EXAMIANS APP
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