engineering recuitment HPCL Junior Executive 2025 Mock Test Fluid Mechanics Flow Measurement Orificemeter
If depth of centre of orifice below the free surface is h, and g is the gravitational acceleration and actual velocity of jet at vena contracta is V then the coefficient of velocity (Cv) is given by ________.
1
\(C_v=\frac{V}{\sqrt{2 g h}}\)
2
\(C_v=\frac{2 g h}{\sqrt{V}}\)
3
\(C_v=\frac{2 V g h}{100}\)
4
\(C_v=\frac{8 V}{\sqrt{2 g h}}\)