A gage pressure of 195 psi is roughly what in psia?

Excel in the ISA Certified Control Systems Technician (CCST) Level 1 Exam with targeted quizzes. Revise using multiple choice questions and detailed explanations. Prepare for success!

To convert gauge pressure to absolute pressure, you must account for atmospheric pressure. Gauge pressure measures pressure relative to atmospheric pressure, whereas absolute pressure includes atmospheric pressure.

At sea level, atmospheric pressure is approximately 14.7 psi. To find the absolute pressure (psia) from the gauge pressure (psig), you add the atmospheric pressure to the gauge pressure:

[

\text{Absolute Pressure (psia)} = \text{Gauge Pressure (psig)} + \text{Atmospheric Pressure (psi)}

]

[

\text{Absolute Pressure (psia)} = 195 \text{ psi} + 14.7 \text{ psi} = 209.7 \text{ psi}

]

Rounding this result gives you approximately 210 psia. Thus, choosing 210 as the answer correctly provides the absolute pressure equivalent of a gauge pressure of 195 psi.

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