engineering recuitment NHPC JE & THDC JE 2023 Mock Test Fluid Mechanics Flow Measurement Orificemeter
The theoretical value of coefficient of contraction for a sharp edged orifice is equal to
1
\(\frac{\pi}{(\pi + 2)}\)
2
\(\frac{(\pi + 2)}{\pi}\)
3
\(\frac{(\pi - 2)}{\pi}\)
4
\(\frac{\pi}{(\pi - 2)}\)