HVAC - Module 3 Questions and
Answers | Latest Version | 2024/2025 |
Correct & Verified
What is the purpose of an air filter in a system?
✔✔ To remove dust and debris from the air before it enters the system.
Why is regular maintenance important for cooling and heating systems?
✔✔ To ensure efficiency, prevent breakdowns, and extend the system’s life.
What can cause a system to stop blowing air?
✔✔ A clogged filter or a malfunctioning blower motor.
How do you check if a thermostat is working correctly?
✔✔ Verify the settings and test it by adjusting the temperature to trigger the system.
Why does proper airflow matter in any air circulation system?
✔✔ It ensures efficient operation and prevents overheating or freezing of components.
1
, What happens if the refrigerant level is too low?
✔✔ The system will not cool properly and may overheat, causing damage.
What is the role of a condenser coil?
✔✔ To release heat from the refrigerant to the outside air.
Why is it important to clean coils regularly?
✔✔ Dirty coils reduce efficiency and can cause the system to overheat.
What should you do if a system is leaking water?
✔✔ Check for a clogged drain line or a malfunctioning condensate pump.
Why might a system cycle on and off too frequently?
✔✔ It could be caused by a thermostat issue, dirty filters, or low refrigerant.
What could cause warm air to blow instead of cool air?
✔✔ Low refrigerant levels or a malfunctioning compressor.
2
Answers | Latest Version | 2024/2025 |
Correct & Verified
What is the purpose of an air filter in a system?
✔✔ To remove dust and debris from the air before it enters the system.
Why is regular maintenance important for cooling and heating systems?
✔✔ To ensure efficiency, prevent breakdowns, and extend the system’s life.
What can cause a system to stop blowing air?
✔✔ A clogged filter or a malfunctioning blower motor.
How do you check if a thermostat is working correctly?
✔✔ Verify the settings and test it by adjusting the temperature to trigger the system.
Why does proper airflow matter in any air circulation system?
✔✔ It ensures efficient operation and prevents overheating or freezing of components.
1
, What happens if the refrigerant level is too low?
✔✔ The system will not cool properly and may overheat, causing damage.
What is the role of a condenser coil?
✔✔ To release heat from the refrigerant to the outside air.
Why is it important to clean coils regularly?
✔✔ Dirty coils reduce efficiency and can cause the system to overheat.
What should you do if a system is leaking water?
✔✔ Check for a clogged drain line or a malfunctioning condensate pump.
Why might a system cycle on and off too frequently?
✔✔ It could be caused by a thermostat issue, dirty filters, or low refrigerant.
What could cause warm air to blow instead of cool air?
✔✔ Low refrigerant levels or a malfunctioning compressor.
2
