ESCO Air Conditioning Practice Exam

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0 pounds per square inch gauge is

  1. A pressure which cannot be measured

  2. The absolute zero pressure

  3. The same as absolute pressure

  4. The same as atmospheric pressure

The correct answer is: A pressure which cannot be measured

A pressure of 0 pounds per square inch gauge means there is no pressure being measured. This is different from absolute zero pressure, which would require a perfect vacuum. It is also not the same as absolute pressure or atmospheric pressure, both of which require some level of pressure to be measured. Therefore, the answer is A.

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