ASE A7 Domain 3: Operating Systems and Related Controls Diagnosis and Repair Welcome to your ASE A7 Domain 3: Operating Systems and Related Controls Diagnosis and Repair 1. ASE A7: Operating Systems and Related Controls Diagnosis and Repair What is the primary function of the A/C control head in an automotive HVAC system? A. To measure cabin air temperature B. To regulate refrigerant flow C. To adjust the blend of hot and cold air D. To engage and disengage the compressor None 2. ASE A7: Operating Systems and Related Controls Diagnosis and Repair Which component in an A/C system is responsible for controlling the flow of refrigerant to the evaporator? A. Compressor B. Receiver-drier C. Expansion valve D. Condenser None 3. ASE A7: Operating Systems and Related Controls Diagnosis and Repair What is the purpose of the blower motor resistor in an A/C system? A. To control the compressor B. To regulate refrigerant flow C. To adjust blower motor speed D. To monitor cabin temperature None 4. ASE A7: Operating Systems and Related Controls Diagnosis and Repair What does the term "HVAC" stand for in automotive terminology? A. Hot Vehicle Air Conditioning B. Heating, Ventilation, and Air Conditioning C. High Voltage Alternating Current D. Heat, Ventilation, and Cooling None 5. ASE A7: Operating Systems and Related Controls Diagnosis and Repair In an A/C system, what is the primary function of the blend door actuator? A. To regulate refrigerant flow B. To control blower motor speed C. To adjust the blend of hot and cold air D. To measure cabin air temperature None 6. ASE A7: Operating Systems and Related Controls Diagnosis and Repair Which type of refrigerant is commonly used in modern automotive A/C systems due to its environmental advantages? A. R-12 B. R-134a C. R-22 D. R-1234yf None 7. ASE A7: Operating Systems and Related Controls Diagnosis and Repair In an automotive A/C system, what is the primary purpose of the evaporator core? A. To remove moisture from the refrigerant B. To convert refrigerant from a gas to a liquid C. To remove heat from the cabin air D. To monitor system pressure None 8. ASE A7: Operating Systems and Related Controls Diagnosis and Repair Which component in an A/C system is responsible for removing moisture from the refrigerant? A. Compressor B. Receiver-drier C. Expansion valve D. Condenser None 9. ASE A7: Operating Systems and Related Controls Diagnosis and Repair What is the primary function of the A/C compressor clutch? A. To control blower motor speed B. To regulate refrigerant flow C. To engage and disengage the compressor D. To monitor cabin temperature None 10. ASE A7: Operating Systems and Related Controls Diagnosis and Repair In an A/C system, what does the term "thermostat" typically refer to? A. A device for measuring tire pressure B. A component that regulates refrigerant flow C. A temperature control device D. A tool for checking battery voltage None 11. ASE A7: Operating Systems and Related Controls Diagnosis and Repair What is the primary purpose of the heater core in an automotive HVAC system? A. To remove moisture from the refrigerant B. To convert refrigerant from a gas to a liquid C. To remove heat from the engine coolant D. To control blower motor speed None 12. ASE A7: Operating Systems and Related Controls Diagnosis and Repair Which component is responsible for controlling the flow of coolant through the heater core in an automotive HVAC system? A. Expansion valve B. Blower motor resistor C. Thermostat D. Receiver-drier None 13. ASE A7: Operating Systems and Related Controls Diagnosis and Repair What is the purpose of the recirculation door in an HVAC system? A. To adjust blower motor speed B. To control the flow of refrigerant C. To switch between heating and cooling modes D. To recirculate cabin air None 14. ASE A7: Operating Systems and Related Controls Diagnosis and Repair In an HVAC system, what is the primary purpose of the blower motor? A. To remove moisture from the refrigerant B. To convert refrigerant from a gas to a liquid C. To circulate air through the system D. To engage and disengage the compressor None 15. ASE A7: Operating Systems and Related Controls Diagnosis and Repair Which component in an HVAC system is responsible for filtering the air entering the cabin? A. Compressor B. Receiver-drier C. Cabin air filter D. Evaporator core None 16. ASE A7: Operating Systems and Related Controls Diagnosis and Repair What is the primary function of the blower motor relay in an HVAC system? A. To regulate refrigerant flow B. To control blower motor speed C. To adjust the blend of hot and cold air D. To measure cabin air temperature None 17. ASE A7: Operating Systems and Related Controls Diagnosis and Repair Which gas is typically used as a refrigerant in automotive HVAC systems? A. Oxygen (O2) B. Nitrogen (N2) C. Carbon dioxide (CO2) D. R-134a None 18. ASE A7: Operating Systems and Related Controls Diagnosis and Repair In an HVAC system, what does the term "mode door" refer to? A. A device for measuring tire pressure B. A component that regulates refrigerant flow C. A device for controlling airflow direction D. A tool for checking battery voltage None 19. ASE A7: Operating Systems and Related Controls Diagnosis and Repair Which component in an HVAC system is responsible for removing moisture from the air to defog the windows? A. Expansion valve B. Blower motor resistor C. Condenser D. Defroster duct None 20. ASE A7: Operating Systems and Related Controls Diagnosis and Repair In an HVAC system, what is the primary function of the A/C high-pressure switch? A. To engage and disengage the compressor B. To measure cabin air temperature C. To adjust blower motor speed D. To control refrigerant flow None 1 out of 20 Time is Up! Time's up
