ASE A7 Heating and Air Conditioning Practice Test

Study for Automotive Service Excellence (ASE) mechanic certification exams with our free ASE A-7 HVAC practice exam. Test your knowledge of common automobile HVAC system repair and maintenance issues. Questions and answers are based on the official ASE study guide.

Results

You passed. Nicely done.

correct answers:

1. recover it and treat it as contaminated

2. an incorrect air gap

3. A only

4. the low side only

5. low refrigerant level

6. both A and B

7. a broken compressor reed valve

You did not pass but that’s why the study guide is linked below 🙂

correct answers:

1. recover it and treat it as contaminated

2. an incorrect air gap

3. A only

4. the low side only

5. low refrigerant level

6. both A and B

7. a broken compressor reed valve

#1. Prior to recovery, an unknown refrigerant is identified. The technician should:

the correct answer is recover it and treat it as contaminated

#2. A compressor clutch will not engage. During testing, the technician finds there is 14.2V and a good ground at the clutch coil connector. Which of these could be the cause?

the correct answer is an incorrect air gap

#3. Technician A says that evacuating an A/C system will remove air and moisture from the system. Technician B says that evacuating an A/C system will remove dirt particles from the system. Who is right?

the correct answer is A only

#4. To charge an A/C system while it is running, the refrigerant should be added to:

the correct answer is the low side only

#5. With the A/C system operating at an ambient (outside) temperature of 85° F, the low pressure gauge reads 5 psi and the high pressure gauge reads 105 psi. What do these readings indicate?

the correct answer is low refrigerant level

#6. The technician measures 14.2 volts at the A/C clutch coil, but the A/C clutch will not engage. Technician A says that a failed clutch coil could be the cause. Technician B says that a failed clutch coil ground could be the cause. Who is right?

the correct answer is both A and B

#7. The high side pressure in an A/C system is above specs. Any of these could be the cause EXCEPT:

the correct answer is a broken compressor reed valve

finish

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Next test: ASE A8 Engine Performance Practice Test

Reference:

This is not an official test, it is a practice test based on the official study guide. Use it for entertainment purposes only.