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






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






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






4. What is the 'G' terminal used for on the thermostat...






5. An auxiliary drain pan must...

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






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






8. A secondary drain line...






9. When installing a refrigeration line set through a masonry wall






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






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






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






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






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






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






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






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






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






19. A room thermostat should be mounted...






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






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






22. What is the 'G' terminal used for on the thermostat...






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






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






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






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






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






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






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






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






31. What is the 'W' terminal used for on the thermostat...






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






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






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






35. A room thermostat should be mounted...






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






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






38. When installing a refrigeration line set through a masonry wall






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






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






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






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






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






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






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






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






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






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






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






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