Waste Water Engineering - Engineering
Q1: Hydraulic mean radius isA
mean radius of sewer
B
difference in heads between two points in circular pipes
C
mean of radii in a pipe line of varying cross-sections
D
cross-sectional area/wetted perimeter.
ANS:D - cross-sectional area/wetted perimeter. Hydraulic mean radius (R) is defined as the cross-sectional area (A) of flow divided by the wetted perimeter (P) of the flow. Mathematically, it is represented as: R=A/P Therefore, the correct option is: d. cross-sectional area/wetted perimeter. |
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