Four Seasons AC Repair

Test Quiz

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1. Too much oil in a compressor can cause as much or more damage than too little oil in a compressor.
- True
- False
2. Reduced airflow across the AC Condenser will:
- Reduce pressures
- Increase pressures
- Increase high side and reduce low side pressures
- Have no effect on pressures
3. Missing air dams, body lifts, custom bumpers and grills, or missing fan shrouds will
- Increase fuel economy
- Decrease airflow across the condenser
- Reduce under hood temperatures
- Improve cooling times
4. Refrigerant is heavier than air so the technician should check with an electronic leak detector on the underside of suspected connections or components.
- True
- False
5. Refrigerant leaks can cause compressor failure due to lack of lubrication.
- True
- False
6. The following chemicals can falsely trigger an electronic leak detector:
- Windshield washer fluid
- Brake fluid
- Transmission fluid
- All of the above
7. Excessive dye in an AC system will enhance the lubrication properties of the oil.
- True
- False
8. Modern AC systems have _______ oil in them than systems from 20 years ago.
- Less
- More
- The same
9. Electronic leak detectors should have the certification of SAE J2791 and/or J2913.
- True
- False
10. After the oil is added to the compressor, and the compressor is mounted to the vehicle, the compressor must be rotated ______ times prior to starting the vehicle.
- 2
- 5
- 8
- 10

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