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






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






3. Will a dirty condenser cause a rise or fall in pressure?






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






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






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






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






8. When do you install an auxillary drain pan?






9. What is the normal evaporator temperature?






10. The fan switch closes at what temperature?






11. 13 SEER is classified as what kind of efficiency?






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






13. On what terminal do you check amperage?






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






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






16. 10 SEER is classified as what kind of efficiency?






17. How many amps can 12 g wire handle?






18. What is it called when liquid refrigerant gets into the compressor?






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






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






21. How many amps can 8 g wire handle?






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






23. The refrigerant within the evaporator will typically boil at what temperature when it is 75 degrees inside with a relative humidity of 50%?






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






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






26. How much superheat do you need to prevent liquid refrigerant from entering the compressor?






27. How are round ducts supported?

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


28. How is flexible duct supported?






29. What is the design boiling point for most evaporator coils in residential air conditioning?






30. What is the difference between SEER and EER?






31. How is ACR tubing sized?






32. How many cfm per ton?






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






34. How will too much refrigerant effect superheat?






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






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






37. At what temperature will soft solder melt?






38. What do you use to check for leaks?






39. What are the two types of blower drives?






40. What are the two types of package units?






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






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






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






44. Why are some ACR tubing lines insulated?






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






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






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






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






49. How long should you leave a system off once you kill power before restarting it?






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