What is the absolute pressure with a gauge pressure of 29.4 psi?

To determine the absolute pressure when provided with a gauge pressure, it's important to understand the relationship between these two types of measurements. Gauge pressure measures the pressure relative to atmospheric pressure, meaning it does not take the atmospheric pressure into account. Absolute pressure, on the other hand, is the total pressure, which includes both the gauge pressure and the atmospheric pressure.

In most situations at sea level, atmospheric pressure is approximately 14.7 psi. Therefore, to find the absolute pressure, one must add the gauge pressure to the atmospheric pressure.

In this scenario, the gauge pressure is given as 29.4 psi. To find the absolute pressure, we would perform the following calculation:

Absolute Pressure = Gauge Pressure + Atmospheric Pressure

Absolute Pressure = 29.4 psi + 14.7 psi

Absolute Pressure = 44.1 psi

This calculation confirms that the absolute pressure is indeed 44.1 psi. Understanding this relationship is essential for proper calculations in diving scenarios, where pressure at different depths impacts safety and equipment performance.