Hydraulics - Civil Engineering Questions and Answers

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Discharge with velocity of approach, over a rectangular weir is

$\frac { 2 } { 3 }$ C_d x L x $\sqrt{2g}$ [(H + ha)^3/2 + ha^3/2]

$\frac { 2 } { 3 }$ C_d x L x $\sqrt{2g}$ [(H + ha)^3/2 - ha^3/2]

$\frac { 2 } { 3 }$ C_d x L x $\sqrt{2g}$ [(H - ha)^3/2 + ha^3/2]

$\frac { 2 } { 3 }$ C_d x L x $\sqrt{2g}$ [(H - ha)^3/2 - ha^3/2]

To avoid the tendency of separation of liquid flow, the most suitable ratio of the diameters of the throat and the pipe, is

1/4 to 1/8

1/3 to 1/2

1/2 to 3/4.

none of these.

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