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. At what temperature will brazing melt?






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






3. Why are some ACR tubing lines insulated?






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






5. Pressure in ductwork is measured In what?






6. How are the condenser coils different on a high-efficiency unit?






7. How are the condenser coils different on a high-efficiency unit?






8. 13 SEER is classified as what kind of efficiency?






9. When do you install an auxillary drain pan?






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






11. A reciprocating compressor has what sort of moving parts?






12. Can refrigerant line sets be altered in length?






13. How many BTU's per ton?






14. What sort of pressure will a push-through evaporator have?






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 high-efficiency unit?






17. How many cfm per ton?






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






19. Most duct insulation is made of what?






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






21. 9' round duct has a ballpark cfm of what?






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






23. How much does a drain line need to drop per foot of length?

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


24. What are the three pressures created by moving air in ductwork?






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






26. What is the normal evaporator temperature?






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






28. If the rpm's are 750 - how many poles does the motor have?






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






30. How do you calculate the area of a circle?






31. The fan switch opens at what temperature?






32. What is the name of the fitting where the branch line leaves the duct?






33. When do you install an auxillary drain pan?






34. What are the three ways a motor can fail electrically?






35. What is the difference between SEER and EER?






36. How is nominal-sized tubing sized?






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






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






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






40. What are the three pressures created by moving air in ductwork?






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






42. How are round ducts supported?

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


43. What are normal conditions - as defined by the ARI.






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






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






46. How many amps can 14 g wire handle?






47. How is flexible duct supported?






48. 6' round duct has a ballpark cfm of what?






49. The furnace size is calculated by what?






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