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Calculate the section factor for the most economical rectangular section having depth of 4m.

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in Fluid Mechanics by (118k points)
Calculate the section factor for the most economical rectangular section having depth of 4m.

(a) 32

(b) 64

(c) 128

(d) 256

The question was asked during an online exam.

This interesting question is from Most Economic Rectangular Section in section Flow in Open Channels of Fluid Mechanics

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The correct option is (b) 64

The explanation: Z = A√D = 2y^2 √y = 2y^5/2

Z = 64.

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