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






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






3. What percentage silver do you need to use for an are-410 system?






4. How many cfm per ton?






5. What are the two ways that fresh air enters a structure?






6. Superheat should never be below how many degrees






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






8. How do you calculate ballpark superheat?






9. Why are some ACR tubing lines insulated?






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






11. Most duct insulation is made of what?






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






13. What is the normal evaporator temperature?






14. How many BTU's per ton?






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






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






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






18. Do you need a vent on a push-through evaporator?






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






20. How do you calculate cfm?

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


21. When do you install an auxillary drain pan?






22. 10' round duct has a ballpark cfm of what?






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






24. How many amps can 14 g wire handle?






25. How many amps can 12 g wire handle?






26. The A/C size is calculated by what?






27. At what temperature does refrigerant condense in a high-efficiency unit?






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






29. Most duct insulation is made of what?






30. How is ACR tubing sized?






31. What is the difference between SEER and EER?






32. What are the two types of package units?






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






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






35. What are the components of a hard-start kit?






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






37. What do you do after you braze a system?






38. If the rpm's are 3450 - how many poles does the motor have?






39. The furnace size is calculated by what?






40. How is nominal-sized tubing sized?






41. Where do you apply flux when soldering?






42. How will too much refrigerant effect superheat?






43. The fan switch opens at what temperature?






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






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






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






47. Which is more efficient - a TXV or a fixed-orifice metering device?






48. What gauge is thermostat wire?






49. Which is more efficient - a TXV or a fixed-orifice metering device?






50. When do you install an auxillary drain pan?