For flow through an orifice from a reservoir, the actual velocity at the vena contracta is given by _________________? August 27, 2021March 10, 2019 by admin For flow through an orifice from a reservoir, the actual velocity at the vena contracta is given by _________________? A. √(2gh)B. C.V. √(2gh) C. Cd √(2gh) D. Cc √(2gh)