The top width of a most economical trapezoidal channel section is 8m, determine the hydraulic radius of the channel if the side slope is 1H:3V.

The top width of a most economical trapezoidal channel section is 8m,

1.	The top width of a most economical trapezoidal channel section is 8m, determine the hydraulic radius of the channel if the side slope is 1H:3V.
A.	1.8m
B.	1.9m
C.	2.0m
D.	2.1m
Answer» C. 2.0m

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The top width of a most economical trapezoidal channel section is 8m, determine the hydraulic radius of the channel if the side slope is 1H:3V.

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