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Hydraulics - Engineering

Q1:

If H is the difference of liquid levels on two sides of an orifice (width b, depth d), the discharge through the orifice will be

A Cdbd22gH

B Cdb2d2gH

C Cdbd2gh

D Cdbd.2g H1/2.

ANS:C - Cdbd2gh

Discharge (Q) = (Cd) * (Area of orifice) * (Velocity).

= (Cd) * (b*d) * (sqrt (2gh)).

= Cd*b*d*sqrt (2gh).