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Under which conditions will the rate of flow of a liquid through a metering orifice (or jet) be the greatest, assuming all other factors are equal?

A. Unmetered pressure: 17 psi; Metered pressure: 5 psi; Atmospheric pressure: 14.7 psi

B. Unmetered pressure: 23 psi; Metered pressure: 12 psi; Atmospheric pressure: 14.3 psi

C. Unmetered pressure: 18 psi; Metered pressure: 17.5 psi; Atmospheric pressure: 14.5 psi

Answer :

Final answer:

The rate of flow of a liquid through a metering orifice will be greatest when the pressure difference across the orifice is the greatest. In this case, the answer is option b.

Explanation:

The rate of flow of a liquid through a metering orifice (or jet) will be greatest when the pressure difference across the orifice is the greatest. In this case, the pressure difference is given by the difference between the unmetered pressure and the metered pressure. Therefore, the answer is option b. Unmetered pressure, 23 psi; Metered pressure, 12 psi; Atmospheric pressure, 14.3 psi.

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