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NATE Air Conditioning Components

Subjects : engineering, nate
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. To ensure proper oil return to the compressor - when installing a refrigeration line set...






2. An auxiliary drain pan must...

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3. The part of an air conditioning system that changes the refrigerant from a low-pressure liquid to a low-pressure gas is the...






4. What type of metering device is used on a 12 SEER split air conditioning system...






5. The part of an air conditioning system that changes the refrigerant from a low-pressure liquid to a low-pressure gas is the...






6. A secondary drain line...






7. Where does the refrigerant change from a high-pressure gas to a high-pressure liquid...






8. Which part of the system prevents liquid from entering the compressor...






9. What is the 'are' terminal used for on the thermostat...






10. Why is it recommended to add a gravel fill under the pad of a condensing unit...






11. When soldering a copper connection and solder is drawn into the joint - This is commonly called...






12. Residential split-system outdoor condensing units are commonly wired with a...






13. What is the purpose for insulating a suction line...






14. When installing an evaporator coil - before soldering - the end of the evaporator lines must be opened to the atmosphere because...






15. Where does the refrigerant change from a high-pressure gas to a high-pressure liquid...






16. What is the 'Y' terminal used for on the thermostat...






17. To ensure proper oil return to the compressor - when installing a refrigeration line set...






18. Which part of the system prevents liquid from entering the compressor...






19. If ductwork is located in an attic or crawl space - it must be...






20. In a sealed system - as the pressure increases...






21. An auxiliary drain pan must...

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22. Residential split-system outdoor condensing units are commonly wired with a...






23. Which part of the system stores refrigerant until it is needed in the evaporator...






24. A normally closed float switch that is connected to an auxiliary drain pan should be wired to control...






25. To ensure proper oil return to the compressor - a coiled refrigeration lineset...






26. Before energizing a newly installed system - what test should always be done...






27. Where does the refrigerant change from a low-pressure gas to a high-pressure gas...






28. Why is it recommended to add a gravel fill under the pad of a condensing unit...






29. When installing an evaporator coil - before soldering - the end of the evaporator lines must be opened to the atmosphere because...






30. A room thermostat should be mounted...






31. In a sealed system - as the pressure increases...






32. Before energizing a newly installed system - what test should always be done...






33. What must be done to the system when a condensing unit is precharged for 25' of refrigerant line and uses 32' of refrigerant line...






34. The part of an air conditioning system that changes the refrigerant from a low-pressure gas to a high-pressure gas is the...






35. A split-system air conditioning unit has...






36. Quick-connect fittings are commonly used on...






37. What is the purpose for insulating a suction line...






38. What type of metering device is used on a 12 SEER split air conditioning system...






39. Where does the refrigerant change from a high-pressure liquid to a low-pressure liquid...






40. A secondary drain line...






41. To ensure proper oil return to the compressor - a coiled refrigeration lineset...






42. What type of fitting uses an O-ring to help seal its joint...






43. The part of an air conditioning system that changes the refrigerant from a high-pressure gas to a high-pressure liquid is the...






44. Where does the refrigerant change from a high-pressure liquid to a low-pressure liquid...






45. What is the secondary voltage on a step-down control transformer for a residential furnace...






46. A split-system air conditioning unit has...






47. When soldering a copper connection and solder is drawn into the joint - This is commonly called...






48. What is the secondary voltage on a step-down control transformer for a residential furnace...






49. What is the 'are' terminal used for on the thermostat...






50. The part of an air conditioning system that changes the refrigerant from a high-pressure liquid to a low-pressure liquid is the...