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PSIG indicates pounds per square inch ____?

Answer :

Final answer:

PSIG stands for 'pounds per square inch gauge,' a pressure measurement relative to atmospheric pressure, commonly used for tire pressure. The SI unit is the pascal, and conversions between units are essential for consistent measurements.

Explanation:

PSIG indicates pounds per square inch gauge, which is a unit to measure pressure. It is often used in describing tire pressure, and it is the pressure relative to atmospheric pressure. For instance, if a tire gauge reads 34 psi, it actually signifies an absolute pressure that is the gauge pressure plus atmospheric pressure (approximately 14.7 psi at sea level), resulting in 48.7 psia. It is worth noting that the unit of pressure in the International System of Units (SI) is the pascal (Pa), and for practical measurements, kilopascal (kPa) is frequently used. The relationship between these units is crucial for comparing pressure measurements in different systems or for converting measurements. For example, 1 bar is equivalent to 100,000 Pa and is comparable to the kilopascal unit.

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