The gauge pressure that is equivalent to the static head from a 75 ft column of water is approximately?

The gauge pressure that is equivalent to the static head from a 75 ft column of water is approximately?

• A. 9.1 psig
• B. 20.0 psig
• C. 32.5 psig
• D. 48.8 psig

Answer: (C)

To calculate the gauge pressure equivalent to the static head from a 75 ft column of water, you can use the following formula, which is based on the relationship between height (static head), the weight density of water, and pressure: Pressure (in psi) = height (in ft) × 0.433 psi/ft. In this case, substituting 75 ft for height, the calculation would be: Pressure = 75 ft × 0.433 psi/ft = 32.475 psi. When rounded, this value is approximately 32.5 psi, which corresponds to the pressure experienced at the bottom of a column of water that is 75 feet high. Therefore, the correct answer is associated with C, signifying that the pressure developed by a static water column of this height results in the gauge pressure calculated. This relation is vital in wastewater systems, where understanding pressure from static water columns helps in designing and operating pumps and systems efficiently.

To calculate the gauge pressure equivalent to the static head from a 75 ft column of water, you can use the following formula, which is based on the relationship between height (static head), the weight density of water, and pressure:

Pressure (in psi) = height (in ft) × 0.433 psi/ft.

In this case, substituting 75 ft for height, the calculation would be:

Pressure = 75 ft × 0.433 psi/ft = 32.475 psi.

When rounded, this value is approximately 32.5 psi, which corresponds to the pressure experienced at the bottom of a column of water that is 75 feet high. Therefore, the correct answer is associated with C, signifying that the pressure developed by a static water column of this height results in the gauge pressure calculated.

This relation is vital in wastewater systems, where understanding pressure from static water columns helps in designing and operating pumps and systems efficiently.