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The ratio of actual discharge to theoretical discharge through an orifice is — Answer & Solution | Civexa

Fluid Mechanics & Hydraulics · Orifices and Mouthpieces

Orifices and Mouthpieces MCQ with answer and solution

The ratio of actual discharge to theoretical discharge through an orifice is

Solution

Concept

Coefficient relations

Formula

Cd = Cc x Cv

Step-by-step solution

1. By definition Cd = Qactual/Qtheoretical = Cc x Cv.

Why the other options are wrong

The other ratios are not the coefficient of discharge.

Shortcut

Cd = Cc × Cv.

Correct answer: D) Cc × Cv

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