ASE A7 Heating Air Conditioning Practice Test
51. The clutch air gap in the illustration is above specifications. Technician A says this will result in a scraping noise when the clutch is engaged. Technician B says to use a feeler gauge to measure this gap. Who is correct?
- A. Technician A
- B. Technician B
- C. Both A and B
- D. Neither A or B
52. The inputs of a 134a refrigerant system in a passenger car are scanned. The display is shown above. Which of the following is correct?
- A. The system has been overcharged with refrigerant.
- B. The system has an undercharge.
- C. The outside air temperature is preventing compressor clutch operation.
- D. None of these statements are correct.
53. A vehicle's air conditioner only blows warm air, and a yellow substance is seen around the evaporator case drip tube. Technician A says this is coolant leaking from the heater core. Technician B says this is fluorescent dye leaking from the evaporator core. Who is correct?
- A. Technician A
- B. Technician B
- C. Both A and B
- D. Neither A or B
54. Two technicians discuss an inoperative electric blend door in an automatic air conditioning system. Technician A says to inspect the blend door's wiring and connections for an open circuit. Technician B says to troubleshoot this circuit with a test light. Who is correct?
- A. Technician A
- B. Technician B
- C. Both A and B
- D. Neither A or B
55. Technician A says evacuating an air conditioning system will remove air, debris, and moisture. Technician B says to evacuate the system whenever it's been exposed to the atmosphere. Who is correct?
- A. Technician A
- B. Technician B
- C. Both A and B
- D. Neither A or B