Test your basic knowledge |

Residential Air Conditioning

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. The A/C size is calculated by what?






2. What kind of copper tubing is used for plumbing and heating applications?






3. What are the two functions of the air-conditioning system?






4. The compressor is cooled by liquid refrigerant. (True of False)






5. How are high-efficiency condenser coils different from standard-efficiency condenser coils?






6. How is the high pressure switch wired with the low pressure switch?






7. How is nominal-sized tubing sized?






8. What gauge is thermostat wire?






9. 10' round duct has a ballpark cfm of what?






10. 13 SEER is classified as what kind of efficiency?






11. In what length rolls is soft copper tubing normally available?






12. What is used to measure static air pressure in ducts.






13. Where do you check the amps on a motor?






14. How do you calculate ballpark superheat?






15. What kind of metering device do high-efficiency units usually use?






16. The evaporator is designed to remove what two types of heat?






17. Can refrigerant line sets be altered in length?






18. If the rpm's are 1050 - how many poles does the motor have?






19. If pressure rises - what happens to the superheat?






20. Do you need a vent on a pull-through evaporator?






21. What is lined duct?






22. What are the two functions of the air-conditioning system?






23. Multiple-zone systems often use what to alleviate the problem of excess air when only some zones are calling for conditioning?






24. What are the two basic duct connection configurations for package units supply and return air ducts?






25. Do you need a trap on a push-through evaporator?






26. How many amps can 8 g wire handle?






27. How will too much refrigerant effect superheat?






28. What is lined duct?






29. How does ACR copper pipe come?






30. Does a package unit come from the factory pre-charged?






31. What do you use to connect square and rectangular ductboard together?






32. What are the three crafts normally associated with an air-conditioned installation?






33. If pressure rises - what happens to the superheat?






34. How many amps can 14 g wire handle?






35. Which type of wire can handle a higher ampacity?






36. 9' round duct has a ballpark cfm of what?






37. What do you use to check for leaks?






38. Do you need a vent on a pull-through evaporator?






39. How are round ducts connected to one another?






40. At what temperature does refrigerant condense in a standard-efficiency unit?






41. How are the high pressure switch and the low pressure switch wired with the compressor contactor?






42. When do you install a trap on a drain line?






43. How will too much refrigerant effect superheat?






44. Sections of duct board can be fastened together with what?






45. What kind of copper tubing is used for refrigeration or air-conditioning applications?






46. Pressure in ductwork is measured In what?






47. What distributes supply air to a room in a structure?






48. What are the three crafts normally associated with an air-conditioned installation?






49. How many amps can 10 g wire handle?






50. If the rpm's are 1750 - how many poles does the motor have?