Prepare for ASE A7: Heating and Air Conditioning
Practice Questions
All of the following statements are correct regarding an air conditioning performance test, EXCEPT: -
correct answer ✔✔b. To avoid outside odor, operate AC System in RECIRC rather than FRESH mode.
During an air conditioning performance test, the technician notices that the compressor outlet is hot.
Technician A says this is a normal condition. Technician B says the air conditioning system is overcharged.
Who is right? - correct answer ✔✔a
Technician A says when the condenser airflow is restricted the pressure is high in both high and low
lines. Technician B says an indication of low refrigerant is when both the high and low sides show low
pressure. Who is right? - correct answer ✔✔c both
Which of the problems listed below will cause the manifold gauge readings shown in the illustration? -
correct answer ✔✔a. Refrigerant overcharge
All of the following tasks are performed when replacing an AC compressor, EXCEPT: - correct answer
✔✔d. Reuse same compressor oil
A compressor clutch will not engage. Power and ground at the clutch coil are good. Which of the
following is the MOST likely cause? - correct answer ✔✔c. Incorrect air gap
Practice Questions
All of the following statements are correct regarding an air conditioning performance test, EXCEPT: -
correct answer ✔✔b. To avoid outside odor, operate AC System in RECIRC rather than FRESH mode.
During an air conditioning performance test, the technician notices that the compressor outlet is hot.
Technician A says this is a normal condition. Technician B says the air conditioning system is overcharged.
Who is right? - correct answer ✔✔a
Technician A says when the condenser airflow is restricted the pressure is high in both high and low
lines. Technician B says an indication of low refrigerant is when both the high and low sides show low
pressure. Who is right? - correct answer ✔✔c both
Which of the problems listed below will cause the manifold gauge readings shown in the illustration? -
correct answer ✔✔a. Refrigerant overcharge
All of the following tasks are performed when replacing an AC compressor, EXCEPT: - correct answer
✔✔d. Reuse same compressor oil
A compressor clutch will not engage. Power and ground at the clutch coil are good. Which of the
following is the MOST likely cause? - correct answer ✔✔c. Incorrect air gap
