6166. Co-efficient of discharge (Cd) is defined as actual discharge/theoretical discharge and is equal to Cc . Cv; where Cc = Co-efficient of contraction and Cv = co-efficient of velocity. Cd of an orifice is usually about September 7, 2025 by Admin 0.42 0.62 0.82 0.98 ✅ The correct answer is option B.
