To convert gauge pressure to absolute ________________.

To convert gauge pressure to absolute pressure, it is essential to understand the fundamental difference between the two types of pressure measurements. Gauge pressure measures pressure relative to the atmospheric pressure, while absolute pressure is measured relative to a perfect vacuum. This means that to convert gauge pressure to absolute pressure, the atmospheric pressure needs to be added to the gauge pressure value.

The process involves adding the local atmospheric pressure to the gauge pressure. Since atmospheric pressure can be expressed in different units, the correct approach varies depending on the unit of measure for pressure.

Adding atmospheric pressure to the gauge pressure directly represents the conversion accurately, whether you are using psi or kPa. Knowing that atmospheric pressure at sea level is approximately 14.7 psi or 101 kPa supports this conversion in any standard pressure unit. Therefore, all the methods presented are valid ways to accomplish this conversion depending on the units being used.

In sum, converting gauge pressure to absolute pressure requires adding the value of atmospheric pressure to the gauge reading, which can be done using various unit measures, thus making the inclusive option the accurate choice.