Environmental Engineering On standard silica scale, the turbidity in drinking water should be limited to 20 ppm 50 ppm 30 ppm 10 ppm 20 ppm 50 ppm 30 ppm 10 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 Anti-siphonage pipe Soil pipe Vent pipe Waste pipe Anti-siphonage pipe Soil pipe Vent pipe Waste pipe ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The slope of sewer shall be Given in the direction of natural slope of ground Zero Steeper than 1 in 20 Given in the direction opposite to natural slope of ground Given in the direction of natural slope of ground Zero Steeper than 1 in 20 Given in the direction opposite to natural slope of ground ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Alum as a coagulant is found to be most effective when pH range of water is 4 to 6 6 to 8 2 to 4 8 to 10 4 to 6 6 to 8 2 to 4 8 to 10 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering In facultative stabilization pond, the sewage is treated by Algae only Sedimentation Dual action of aerobic bacteria and anaerobic bacteria Aerobic bacteria only Algae only Sedimentation Dual action of aerobic bacteria and anaerobic bacteria Aerobic bacteria only 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 400 ppm 100 ppm 200 ppm 300 ppm 400 ppm 100 ppm 200 ppm 300 ppm ANSWER DOWNLOAD EXAMIANS APP
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