FLUID MECHANICS d 2 ( 25.0 ) 2 m = 1 = = . 6 25 d 2 2 ( 10.0 ) 2 Therefore, 2gH Qactual = C d A 1 (m 2 − ) 1 2 . 9 81 10 . 58 Qactual = 65.0 . 0 049 ( 25.6 2 ) 1− 0= . 074 m 3 s / i. Types of orifice 1. Sharp-edged orifice, Cd = 0.62 92