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 does refrigerant condense in a standard-efficiency unit?






2. What gauge is thermostat wire?






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






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






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






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






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






8. How many amps can 14 g wire handle?






9. How many cfm per ton?






10. What component changes refrigerant from a low pressure gas to a high pressure gas?






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






12. Superheat should never be below how many degrees






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






14. How are round ducts supported?

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15. What do you use to check for leaks?






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






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






18. What are the two types of package units?






19. What tool is used to expand the diameter of soft copper tubing






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






21. How do you calculate ballpark superheat?






22. If the suction pressure rises - what happens to the head pressure?






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






24. How many amps can 8 g wire handle?






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






26. How will too much refrigerant effect superheat?






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






28. What is the difference between SEER and EER?






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






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






31. How do you calculate LRA?






32. Pressure in ductwork is measured In what?






33. In what state is the refrigerant in the compressor?






34. Why are some ACR tubing lines insulated?






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






36. What is a package unit?






37. How many amps can 10 g wire handle?






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






39. Can refrigerant line sets be altered in length?






40. 9' round duct has a ballpark cfm of what?






41. How many amps can 8 g wire handle?






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






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






44. What type of air conditioning system must be charged using the superheat method?






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






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






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






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






49. 7' round duct has a ballpark cfm of what?






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