Environmental Engineering If Biochemical oxygen demand (BOD) of a town is 20000 kg/day and BOD per capita per day is 0.05 kg, then population equivalent of town is 4,00,000 1000 1,00,000 4000 4,00,000 1000 1,00,000 4000 ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The biochemical treatment of sewage effluents is essentially a process of Reduction Dehydration Alkalinization Oxidation Reduction Dehydration Alkalinization Oxidation ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The relative stability of a sewage sample, whose dissolved oxygen is same as the total oxygen required to satisfy BOD, is Zero 1 100 Infinite Zero 1 100 Infinite 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 300 ppm 100 ppm 200 ppm 400 ppm 300 ppm 100 ppm 200 ppm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The type of valve, which is provided on the suction pipe in a tube-well, is Reflux valve Air relief valve Pressure relief valve Sluice valve Reflux valve Air relief valve Pressure relief valve Sluice valve ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering An egg shaped section of sewer Is economical than circular section Is more stable than circular section Provides self cleansing velocity at low discharges Is easy to construct Is economical than circular section Is more stable than circular section Provides self cleansing velocity at low discharges Is easy to construct ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS