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What is the discharge coefficient for a large rectangular orifice?

12. What is the discharge coefficient for a large rectangular orifice?

1. 0.61
2. 0.98
3. 1.23
4. 1.00

Answer: A) 0.61

Explanation:

The discharge coefficient for a large rectangular orifice is typically taken as 0.61. This coefficient is used to relate the actual discharge through the orifice to the theoretical discharge that would occur if the orifice were a perfect sharp-edged orifice.