Preview Questions HVAC Technician | Role Specific Skill

Question 1: What is the impact of duct leakage on HVAC system efficiency?

Which action should you take?

Choose only one option

It has no effect if the ducts are insulated

It can significantly reduce system efficiency by wasting conditioned air and energy

It increases the efficiency by maintaining consistent air pressure

It only affects the heating function

Question 2: What is the purpose of inspecting and tightening electrical connections during preventative maintenance?

Which action should you take?

Choose only one option

To prevent electrical shorts

To reduce energy consumption

To ensure proper voltage flow

To prevent overheating of components

Question 3: What should an HVAC technician do if an air conditioning unit is running, but no cool air is being distributed?

Which action should you take?

Choose only one option

Clean the refrigerant coils

Check for airflow obstructions, clogged filters, or fan issues

Replace the thermostat

Increase refrigerant charge

Question 4: What is the primary goal of checking the air dampers during preventative maintenance on an HVAC system?

Which action should you take?

Choose only one option

To ensure they open and close correctly to control airflow and energy efficiency

To check the system's noise levels and reduce vibrations

To calibrate the thermostat for accuracy

To verify the refrigerant charge is appropriate

Question 5: What is the first step in troubleshooting an HVAC system that is not cooling?

Which action should you take?

Choose only one option

Immediately replace the compressor

Increase the airflow by adjusting the fan speed

Clean the air filters and ducts

Check the refrigerant levels and ensure the system is properly charged

Question 6: How can a technician detect if the capacitor is faulty in an HVAC system?

Which action should you take?

Choose only one option

Replace the capacitor immediately

Listen for a buzzing sound coming from the unit

Check the condenser coil for any visible damage

Measure the voltage and current across the capacitor to check for proper operation