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Calculate the minimum specific energy of a rectangular channel having critical depth of 1.5m.

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+1 vote
in Fluid Mechanics by (118k points)
Calculate the minimum specific energy of a rectangular channel having critical depth of 1.5m.

(a) 3.25m

(b) 2.25m

(c) 1.25m

(d) 0.25m

I got this question in an internship interview.

This interesting question is from Critical Flow in Different Channel Sections in portion Flow in Open Channels of Fluid Mechanics

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Best answer
Right choice is (b) 2.25m

For explanation: Minimum specific energy Ec = ^3⁄2 yc = 2.25m.

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