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.