Waste Water Engineering
Hydraulic mean radius is

Mean of radii in a pipe line of varying cross -sections
Cross-sectional area/wetted perimeter
Mean radius of sewer
Difference in heads between two points in circular pipes

ANSWER DOWNLOAD EXAMIANS APP

Waste Water Engineering
Dilution method of disposing of sewage, is not preferred to

When diluting water has high dissolved oxygen content
When diluting water is used for water supply near the point of sewage disposed
When sewage is fresh
When the diluting water is having flow currents

ANSWER DOWNLOAD EXAMIANS APP