Understanding Manifold Gauges in HVAC

What is a manifold gauge primarily used for in HVAC systems?

• Detecting electrical faults

• Calculating humidity levels

• Measuring temperature

• Checking the pressure of gases and liquids

Which color is associated with the high-pressure valve on a manifold gauge?

• Red

• Blue

• Yellow

• Green

What is the purpose of the yellow hose in a manifold gauge set?

• To connect to the low-pressure valve

• To connect to the high-pressure valve

• To connect to an external source

• To measure temperature

What is the center unit where everything is attached in a manifold gauge called?

• Compressor

• Valve

• Manifold

• Gauge

Which of the following is NOT a function of a manifold gauge?

• Measuring electrical current

• Releasing moisture and sludge

• Checking pressure in AC lines

• Removing contaminated refrigerants

What must a manifold gauge match in an HVAC system?

• The refrigerant used

• The electrical voltage

• The temperature setting

• The humidity level

What type of manifold gauge sets are available?

• Portable and fixed

• Single and dual

• Manual and automatic

• Analog and digital

What is the role of the blue hose in a manifold gauge set?

• To connect to the high-pressure valve

• To connect to the low-pressure valve

• To connect to an external source

• To measure temperature

Which of the following is a use of manifold gauges?

• Recharging refrigerants

• Measuring electrical resistance

• Detecting sound levels

• Calculating airflow

What is a key skill for an HVAC technician related to manifold gauges?

• Painting the valves

• Calibrating the gauges

• Programming the gauges

• Welding the hoses