Environmental Engineering Sewerage system is usually designed for 28 years 25 years 26 years 27 years 28 years 25 years 26 years 27 years ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The percentage of chlorine in fresh bleaching powder is about 20 to 25 40 to 50 30 to 35 10 to 15 20 to 25 40 to 50 30 to 35 10 to 15 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Most suitable section of sewer in separate sewage system is Circular section Modified egg shaped section Rectangular section Standard form of egg shaped sewer Circular section Modified egg shaped section Rectangular section Standard form of egg shaped sewer 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 200 ppm 100 ppm 400 ppm 300 ppm 200 ppm 100 ppm 400 ppm 300 ppm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Scour valves are provided 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 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 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The overflow rate for plain sedimentation tanks is about 500 to 750 liters/hour/ m² 1500 to 2000 liters/hour/m² 1250 to 1500 liters/hour/m² 1000 to 1250 liters/hour/ m² 500 to 750 liters/hour/ m² 1500 to 2000 liters/hour/m² 1250 to 1500 liters/hour/m² 1000 to 1250 liters/hour/ m² ANSWER DOWNLOAD EXAMIANS APP
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