Residential HVAC Installation Practice Exam

What does a compound gauge measure?

Temperature only Pressure only Humidity only All of the above

Correct Answer:

All of the above

Explanation:

A compound gauge measures both pressure and temperature. In HVAC systems, a compound gauge is commonly used to measure the pressure of refrigerant in the system. It consists of two gauges in one unit - a low-pressure side (measures pressure in the low-pressure part of the system) and a high-pressure side (measures pressure in the high-pressure part of the system). Temperature can also be measured using this type of gauge, providing versatility and efficiency for technicians during HVAC system installations or servicing. Therefore, the correct answer is D, as a compound gauge is designed to measure both pressure and temperature.

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