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ASE A7 Practice Test

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Question 1 of 20

1. Question
All of these statements regarding an air conditioning performance test are true EXCEPT:
- a. To avoid evaporator odor, you want to operate the AC in RECIRC instead of FRESH
- b. Obstructions of the cabin filter might create insufficient air circulation
- c. Road debris might clog the condenser fins which lead to a decrease in performance
- d. If the passenger side floor is wet, it could be a clogged evaporator drain line.
Correct

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Question 2 of 20

2. Question
Technician A states that when the condenser airflow is restricted, the pressure is high in both the high and low lines. Technician B states that when both high and low sides show low pressure, it’s often an indication of low refrigerant.

Who is correct?
- a. Technician A
- b. Technician B
- c. Both technicians
- d. Neither technician
Correct

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Question 3 of 20

3. Question
The A/C compressor high-pressure release valve discharges refrigerant at what approximate measurement?
- a. 200 psi (1,379 kPa)
- b. 325 psi (2,240 kPa)
- c. 375 psi (2,585 kPa)
- d. 475 psi (3,275 kPa)
Correct

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Question 4 of 20

4. Question
All of these statements regarding A/C-heater control panel service are accurate EXCEPT:
- a. In an air-bag equipped vehicle, you must wait the specified period once the negative battery cable is disconnected.
- b. The negative battery cable needs to be disconnected before A/C control panel removal.
- c. Self-diagnostic tests might indicate a defective A/C control panel in the computer-controlled system.
- d. You must discharge the refrigeration system before the A/C control panel removal.
Correct

Incorrect
Question 5 of 20

5. Question
Incoming air is heated in the vent position with the temperature selector in the cool position. What might be the problem?
- a. Heater core is clogged.
- b. Cooling fan is inoperative.
- c. Air blend door is stuck.
- d. Low coolant in the radiator.
Correct

Incorrect
Question 6 of 20

6. Question
To charge the air conditioning system while it runs, refrigerant must be added to:
- a. the low side
- b. the high side
- c. either side
- d. both sides
Correct

Incorrect
Question 7 of 20

7. Question
During a performance test, technicians notice the compressor outlet is hot. Technician A believes this is normal. Technician B believes the system is overcharged.

Who is correct?
- a. Technician A
- b. Technician B
- c. Both technicians
- d. Neither technician
Correct

Incorrect
Question 8 of 20

8. Question
All of these tasks occur when replacing the AC compressor EXCEPT:
- a. installing new seals and gaskets
- b. Reuse existing compressor oil
- c. Reuse all mounting brackets
- d. Use an equivalent or the same compressor
Correct

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Question 9 of 20

9. Question
Using a DMM, technicians measure 12 volts at the clutch coil, but it doesn’t engage. Technician A believes the bad clutch coil is the cause.

Technician B believes that the bad clutch coil ground is the issue. Who is correct?
- a. Technician A
- b. Technician B
- c. Both technicians
- d. Neither technician
Correct

Incorrect
Question 10 of 20

10. Question
While filling an A/C system recovery container with recovered refrigerant, the capacity you can fill the container would be:
- a. 50%
- b. 60%
- c. 70%
- d. 80%
Correct

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Question 11 of 20

11. Question
After a recovery process, low-side pressure indicates above zero after five minutes. This condition means:
- a. The refrigerant system contains excessive oil
- b. There’s a leak in the refrigerant system
- c. The system still contains some refrigerant
- c. There’s an excess of moisture in the refrigerant system
Correct

Incorrect
Question 12 of 20

12. Question
Technician A believes that a radiator needs to be inspected for leaks prior to installing a rebuilt engine. Technician B states that overheating during slower travel might be caused by the electric cooling fan fault.

Who is correct?
- a. Technician A
- b. Technician B
- c. Both technicians
- d. Neither technician
Correct

Incorrect
Question 13 of 20

13. Question
If the cooling system operates too cool, the engine will do what?
- a. Be less efficient
- b. Produce more torque
- c. Produce higher emissions
- d. Detonation
Correct

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Question 14 of 20

14. Question
All of these statements regarding the computer-controlled A/C system actuator motor are correct EXCEPT:
- a. A/C component and system troubles don’t produce diagnostic trouble codes
- b. Some actuator motors are automatically calibrated in the self-diagnostic mode
- c. The actuator motor control rods only require calibration once the motor has been misadjusted or replaced
- d. Actuator motor control rods must be manually calibrated with some systems
Correct

Incorrect
Question 15 of 20

15. Question
A recirculate door isn’t working. All of these might be the cause EXCEPT:
- a. Blocked or clogged restrictor
- b. Disconnected, broken or split hose
- c. Open or restricted check valve
- d. Broken or cracked vacuum tank
Correct

Incorrect
Question 16 of 20

16. Question
The moisture warning light on the recovery/recycling equipment shows yellow in the recycling process. This shows:
- a. The filter/drying cartridge on the tester needs to be changed
- b. There is excessive amounts of oil found in the refrigerant
- c. The vacuum pump can’t produce enough vacuum
- d. There are excessive amounts of non-condensable gases in the refrigerant
Correct

Incorrect
Question 17 of 20

17. Question
Technician A states that a misadjusted temperature door might cause poor heat. Technician B states that a defective resistor trio might cause the no high blower condition.

Who is correct?
- a. Technician A
- b. Technician B
- c. Both technicians
- d. Neither technician
Correct

Incorrect
Question 18 of 20

18. Question
A heater blows only cold air at operating temperature. Technician A states it must be a stuck closed thermostat. Technician B states the coolant system might be running low on coolant.

Who is correct?
- a. Technician A
- b. Technician B
- c. Both technicians
- d. Neither technician
Correct

Incorrect
Question 19 of 20

19. Question
All of these statements are accurate in relation to the expansion valve, EXCEPT:
- a. When it fails in the open position, it’s often a result of debris in the system
- b. When moisture enters the system, ice might form and lead to a blockage
- c. If stuck closed, the pressure on the low side is high and pressure on the high side is low
- d. It might seize in the closed position if it doesn’t have enough lubricant
Correct

Incorrect
Question 20 of 20

20. Question
A customer comes in with the complaint that the heater will not blow warm air. It blows cold air when engaged. All fan speed settings work, however the temperature never increases.

Which of the following issues is most likely to blame?
- a. Bad refrigerant in the HVAC system
- b. A restricted heater core
- c. A stuck open thermostat
- d. A faulty heater switch
Correct

Incorrect

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