engineering recuitment NHPC JE & THDC JE 2023 Mock Test Fluid Mechanics Flow Measurement Venturimeter
Coefficient of contraction is the ratio of:
1
actual velocity of jet at Vena contracta to the theoretical velocity.
2
loss of head in the orifice to the head of water available at the exit of the orifice.
3
actual discharge through an orifice to the theoretical discharge.
4
area of jet at Vena contracta to the area of orifice.