Environmental Engineering The velocity of flow of water in a sedimentation tank is about 15 to 30 cm/minute 5 to 10 cm/sec 15 to 30 cm/hour 15 to 30 cm/sec 15 to 30 cm/minute 5 to 10 cm/sec 15 to 30 cm/hour 15 to 30 cm/sec ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering On standard silica scale, the turbidity in drinking water should be limited to 50 ppm 30 ppm 10 ppm 20 ppm 50 ppm 30 ppm 10 ppm 20 ppm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering As compared to cast iron pipes, steel pipes are Stronger Heavier Costlier Less susceptible to corrosion Stronger Heavier Costlier Less susceptible to corrosion ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The hydraulic mean depth (HMD) for an egg-shaped sewer flowing two-third full is Less than HMD when flowing full None of these Greater than HMD when flowing full Equal to HMD when flowing full Less than HMD when flowing full None of these Greater than HMD when flowing full Equal to HMD when flowing full ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Double filtration is used To increase the filtration rapid sand filters capacity of For isolated buildings like pools, hotels etc swimming To increase the filtration slow sand filters capacity of All of these To increase the filtration rapid sand filters capacity of For isolated buildings like pools, hotels etc swimming To increase the filtration slow sand filters capacity of All of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The detention period for oxidation ponds is usually kept as 10 to 15 days 24 hours 48 hours 3 months 10 to 15 days 24 hours 48 hours 3 months ANSWER DOWNLOAD EXAMIANS APP
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