Preview Questions HVAC Technician | Role Specific Skill

Question 1: How should an HVAC technician troubleshoot a system that is not cooling properly but the compressor is running?

Which action should you take?

Choose only one option

Check the refrigerant charge and inspect the evaporator and condenser coils

Increase the fan speed

Replace the compressor immediately

Increase refrigerant charge

Question 2: How does an HVAC technician ensure the correct airflow in a new duct system installation?

Which action should you take?

Choose only one option

By estimating the airflow based on the number of vents

By reducing the number of ducts to minimize airflow

By measuring static pressure and adjusting duct sizes to ensure balance and efficiency

By increasing the fan speed to overcome resistance

Question 3: How does the SEER (Seasonal Energy Efficiency Ratio) rating influence the choice of an HVAC system?

Which action should you take?

Choose only one option

It determines the cooling capacity of the system

It measures the refrigerant flow rate in the system

It measures the system's energy efficiency, with higher ratings indicating more efficient systems

It calculates the total cost of installation and maintenance

Question 4: How would you troubleshoot an HVAC system that is not providing adequate heating, even though it runs?

Which action should you take?

Choose only one option

Replace the system's thermostat without checking components

Ignore the thermostat and check only the fan motor performance

Check the heating elements, inspect the airflow system, and verify the thermostat operation

Increase the thermostat setting to maximum and monitor

Question 5: When operating an HVAC system with multiple zones, what is the key factor in ensuring balanced airflow throughout the system?

Which action should you take?

Choose only one option

Increasing fan speed to force air into all zones

Ensuring the largest ducts are used for all zones

Correct duct sizing and zoning dampers

Installing separate compressors for each zone

Question 6: What is the role of a pressure relief valve in an HVAC system design?

Which action should you take?

Choose only one option

To ensure that the system does not operate at pressures that could damage components

To filter air before it enters the system

To regulate refrigerant flow

To increase airflow