Question

A V-shaped ditch on 0.5% slope must be designed to carry a flow rate of 60-ft^3/sec. the ditch is to be dug in non-colloidal alluvial silts. if the width of the ditch top required to be 2.3 times its depth, ignoring freeboard,

A) the depth of the ditch is

a) 4.7 ft

b)4.8 ft

c) 5.1 ft

d) 5.3 ft

B) The top width of the ditch (ignoring freeboard) is

a)11.75 ft

b)12.75 ft

c) 10.7 ft

d) 11 ft

answer asap please!!

Answer 1

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