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For a channel to be economic which of the following parameters should be minimum.

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+1 vote
in Fluid Mechanics by (118k points)
For a channel to be economic which of the following parameters should be minimum.

(a) Wetted perimeter

(b) Wetted area

(c) Section factor

(d) Hydraulic depth

I have been asked this question in an interview.

Question is taken from Most Economic Rectangular Section in chapter Flow in Open Channels of Fluid Mechanics

1 Answer

+2 votes
by (362k points)
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Best answer
Correct choice is (a) Wetted perimeter

The best I can explain: If the wetted perimeter is minimum, amount of materials required for construction of the channel is less and hence the channel is more economical.

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