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. How is insulation around a duct rated?






2. What are the two types of return air systems in residential installations?






3. What is the typical pressure differance across a TXV?






4. How many cfm per ton?






5. On what terminal do you check amperage?






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






7. What are the four materials used to make duct?






8. What gauge is thermostat wire?






9. How do you calculate ballpark superheat?






10. The crankcase heater on an air-conditioning compressor is used to what?






11. What sort of pressure will a pull-through evaporator have?






12. How many BTU's per ton?






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






14. How do you calculate LRA?






15. When must a copper joint never be soldered or brazed?






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






17. What is the typical temperature difference between a high-efficiency condenser and the ambient temperature?






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






19. What kind of refrigeratnts must be added in liquid form?






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






21. The load on the evaporater will effect which pressure?






22. How is nominal-sized tubing sized?






23. How will too much refrigerant effect superheat?






24. What do you use to check for leaks?






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






26. The fan switch opens at what temperature?






27. Where do you apply flux when soldering?






28. At what temperature will brazing melt?






29. How will an overcharge affect an air-conditioning system with a fixed-orifice type metering device?






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






31. Can refrigerant line sets be altered in length?






32. What standard weight copper tubing is most often used in the heating and air-conditioning industry?






33. What gauge is thermostat wire?






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






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






36. How will too much refrigerant effect subcooling?






37. What percentage silver do you use to braze two dissimilar metals such as steel and copper?






38. What are the three major power-consuming devices on an air-conditioning system?






39. Where is insulation used on copper tubing used for air-conditioning?






40. 10 SEER is classified as what kind of efficiency?






41. 7' round duct has a ballpark cfm of what?






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






43. How do you calculate cfm?

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


44. At what temperature will brazing melt?






45. What is the range for normal superheat and subcooling?






46. How are round ducts connected to one another?






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






48. Why is it necessary to have multiple refrigerant circuits in some evaporator coils?






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






50. What kind of refrigeratnts must be added in liquid form?