What is 84 feet of head in psi?

To determine what 84 feet of head is in psi (pounds per square inch), we use the conversion factor that relates feet of head to psi. This conversion utilizes the formula where 1 foot of head is equivalent to approximately 0.433 psi.

Thus, the calculation to convert feet of head to psi is:

[

\text{Pressure (psi)} = \text{Height (feet)} \times 0.433

]

Applying this to 84 feet of head:

[

\text{Pressure (psi)} = 84 \times 0.433 = 36.372

]

Rounding this value gives approximately 36.36 psi. This calculation confirms that 84 feet of head translates to 36.36 psi effectively, making it the correct choice. In the context of fluid dynamics and hydrology, understanding these conversions is important for various applications, including designing water systems and understanding pressure losses.