nevilan

Quiz Title: Basic Airconditioning Technician Knowledge

By NEVILAN

Multiple Choice

1. What does HVAC stand for?

• Heating, Ventilation, and Air Management
• Heating, Ventilation, and Airflow
• Heating, Ventilation, and Air Conditioning
• Heating, Ventilation, and Air Quality

Multiple Choice

2. Which refrigerant is commonly used in residential air conditioning systems?

• R-134A
• R-22
• R-410A
• R-32

Multiple Choice

3. Which tool is used to measure system pressure in an air conditioning unit?

• Pressure gauge
• Manometer
• Multimeter
• Thermometer

Multiple Choice

4. What is the function of a compressor in an air conditioning system?

• The compressor filters dust and debris from the air.
• The compressor cools the air directly before it enters the room.
• The compressor circulates and compresses refrigerant gas to facilitate heat exchange in the air conditioning system.
• The compressor generates electricity to power the system.

Multiple Choice

5. What color is the high-pressure hose in a manifold gauge set?

• Red
• Blue
• Green
• Yellow

Multiple Choice

6. What safety gear should be worn when handling refrigerants?

• Sunglasses and sandals
• Regular clothing and no mask
• Earplugs and a hat
• Safety goggles, gloves, respirator, and protective clothing.

Multiple Choice

7. Which component removes moisture and impurities from the refrigerant?

• Compressor
• Condenser
• Drier or filter drier
• Expansion valve

Multiple Choice

8. What is the normal operating pressure for R-410A on the low side?

• 200 to 220 psi
• 120 to 140 psi
• 150 to 170 psi
• 80 to 100 psi

Multiple Choice

9. Why is vacuuming an air conditioning system important before charging it?

• Vacuuming increases the pressure in the system.
• Vacuuming helps to cool the air faster.
• Vacuuming is only necessary for older systems.
• Vacuuming removes moisture and contaminants, preventing damage and ensuring efficient operation.

Multiple Choice

10. What is the first step when troubleshooting an air conditioning unit?

• Clean the outdoor unit coils.
• Check the thermostat settings.
• Check the power supply.
• Inspect the air filter for dust.