Coefficient of resistance is the ratio of

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Coefficient of resistance is the ratio of Answer: loss of head in the orifice to the head of water available at the exit of the orifice

Question context

This question is part of ⚙️ Mechanical Eng within the broader 🛠️ Engineering Essentials subject and appears in the DemoPaper-Pakistan preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.