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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