ASE T7 Domain 2: A/C System and Component Diagnosis, Service, and Repair Welcome to your ASE T7 Domain 2: A/C System and Component Diagnosis, Service, and Repair 1. ASE T7: A/C System and Component Diagnosis Service and Repair What is the primary function of the A/C compressor in an automotive air conditioning system? A. To control the blower fan speed B. To remove moisture from the cabin air C. To compress and circulate the refrigerant D. To regulate the engine's idle speed None 2. ASE T7: A/C System and Component Diagnosis Service and Repair Which refrigerant is commonly used in modern automotive air conditioning systems and has largely replaced R-12 (Freon) due to environmental concerns? A. R-22 B. R-1234yf C. R-134a D. R-410A None 3. ASE T7: A/C System and Component Diagnosis Service and Repair What component is responsible for removing moisture from the refrigerant in an automotive A/C system? A. Condenser B. Receiver-drier C. Evaporator D. A/C compressor None 4. ASE T7: A/C System and Component Diagnosis Service and Repair In an automotive A/C system, what is the purpose of the expansion valve? A. To regulate the engine's idle speed B. To control the temperature of the refrigerant C. To direct airflow within the cabin D. To regulate the flow of refrigerant and reduce its pressure None 5. ASE T7: A/C System and Component Diagnosis Service and Repair What is the likely cause of an A/C system that blows warm air when the vehicle is idling but cools properly at higher engine speeds? A. Faulty A/C compressor B. Low refrigerant charge C. Malfunctioning expansion valve D. Clogged cabin air filter None 6. ASE T7: A/C System and Component Diagnosis Service and Repair What component is responsible for controlling the blower fan speed in an automotive A/C system? A. A/C compressor B. Heater core C. Blower motor resistor D. Evaporator None 7. ASE T7: A/C System and Component Diagnosis Service and Repair In an A/C system, what component is responsible for releasing heat absorbed by the refrigerant during the cooling process? A. Evaporator B. Receiver-drier C. Condenser D. Expansion valve None 8. ASE T7: A/C System and Component Diagnosis Service and Repair What is the function of the HVAC mode door in a vehicle's climate control system? A. To regulate the engine's idle speed B. To control the blower fan speed C. To direct airflow to different vents or modes (e.g., defrost, floor, dash) D. To compress the refrigerant None 9. ASE T7: A/C System and Component Diagnosis Service and Repair In an automotive A/C system, what does the evaporator coil primarily do? A. It cools the cabin air B. It heats the cabin air C. It pressurizes the refrigerant D. It removes moisture from the cabin air None 10. ASE T7: A/C System and Component Diagnosis Service and Repair What is the purpose of the A/C system's compressor clutch? A. To control the blower fan speed B. To remove moisture from the cabin air C. To compress and circulate the refrigerant D. To regulate the engine's idle speed None 11. ASE T7: A/C System and Component Diagnosis Service and Repair What can be the consequence of overcharging the refrigerant in an automotive A/C system? A. Reduced cooling capacity B. Improved fuel efficiency C. Faster blower fan speed D. Enhanced cabin air filtration None 12. ASE T7: A/C System and Component Diagnosis Service and Repair In an A/C system, what component is responsible for directing refrigerant flow between the evaporator and condenser? A. Receiver-drier B. Expansion valve C. A/C compressor D. Blower motor resistor None 13. ASE T7: A/C System and Component Diagnosis Service and Repair What is the function of the HVAC recirculation mode in a vehicle's climate control system? A. To regulate the engine's idle speed B. To control the blower fan speed C. To recirculate cabin air, improving cooling efficiency D. To compress the refrigerant None 14. ASE T7: A/C System and Component Diagnosis Service and Repair What could be the cause of an A/C system that produces an unpleasant odor when the air conditioning is turned on? A. A faulty blower motor resistor B. Clogged cabin air filter C. A malfunctioning compressor clutch D. Low refrigerant charge None 15. ASE T7: A/C System and Component Diagnosis Service and Repair What is the primary purpose of the A/C system's condenser fan? A. To regulate the engine's idle speed B. To control the blower fan speed C. To assist in cooling the A/C refrigerant in the condenser D. To direct airflow within the cabin None 16. ASE T7: A/C System and Component Diagnosis Service and Repair What is the potential consequence of a refrigerant leak in an automotive A/C system? A. Improved cooling performance B. Reduced fuel efficiency C. Quieter blower fan operation D. Extended A/C system lifespan None 17. ASE T7: A/C System and Component Diagnosis Service and Repair In an A/C system, what component is responsible for removing heat from the cabin air during the cooling process? A. Evaporator B. Receiver-drier C. Compressor clutch D. Expansion valve None 18. ASE T7: A/C System and Component Diagnosis Service and Repair What is the purpose of the A/C system's high-pressure relief valve? A. To regulate the engine's idle speed B. To control the blower fan speed C. To protect the system from over-pressurization D. To direct airflow within the cabin None 19. ASE T7: A/C System and Component Diagnosis Service and Repair What component is responsible for converting high-pressure vapor refrigerant into a high-pressure liquid in an A/C system? A. Condenser B. Evaporator C. Receiver-drier D. Expansion valve None 20. ASE T7: A/C System and Component Diagnosis Service and Repair What is the primary function of the A/C system's accumulator or receiver-drier? A. To regulate the engine's idle speed B. To control the blower fan speed C. To remove moisture from the refrigerant D. To direct airflow within the cabin None 1 out of 20 Time is Up! Time's up
