At what pressure reading is the value 42.67 found?

The pressure reading of 42.67 is typically presented in the context of a vacuum pressure measurement. The value given is equivalent to a certain amount of mercury in inches, and the conversion suggests that it represents a relatively low atmospheric pressure or a higher vacuum.

In this case, the answer of 1.6" hg aligns with a pressure reading in the vacuum range. Specifically, it suggests that the system is operating at a pressure that is significantly lower than atmospheric pressure, which can be the case in refrigeration systems where maintaining a proper vacuum is crucial for efficient operation.

This level of vacuum is important in industrial refrigeration applications, where lower pressures can facilitate lower boiling temperatures for refrigerants, thus contributing to system efficiency. Understanding vacuum measurements and their relation to pressures is critical for operators to ensure their systems are functioning correctly and safely.