Environmental Engineering The effective size of sand particles used in slow sand filters is 1.00 to 1.80 mm 0.60 to 1.00 mm 0.25 to 0.35 mm 0.35 to 0.60 mm 1.00 to 1.80 mm 0.60 to 1.00 mm 0.25 to 0.35 mm 0.35 to 0.60 mm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The detention period in coagulation tanks is usually kept as 2 to 6 days 30 to 45 minutes 1 to 2 minutes 2 to 6 hours 2 to 6 days 30 to 45 minutes 1 to 2 minutes 2 to 6 hours ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Which of the following is not a water borne disease? Malaria Cholera Typhoid Dysentery Malaria Cholera Typhoid Dysentery ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The amount of residual chlorine left in public water supply for safety against pathogenic bacteria is about 0.01 to 0.05 ppm 0.5 to 1.0 ppm 1.0 to 5.0 ppm 0.05 to 0.5 ppm 0.01 to 0.05 ppm 0.5 to 1.0 ppm 1.0 to 5.0 ppm 0.05 to 0.5 ppm ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering Which of the following unit works in anaerobic conditions? Activated sludge treatment Trickling filters Sedimentation tank Sludge digestion tank Activated sludge treatment Trickling filters Sedimentation tank Sludge digestion tank ANSWER DOWNLOAD EXAMIANS APP
Environmental Engineering The suitable system of sanitation for area of distributed rainfall throughout the year with less intensity is Partially combined system Partially separate system Separate system Combined system Partially combined system Partially separate system Separate system Combined system ANSWER DOWNLOAD EXAMIANS APP
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