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 do you calculate cfm?

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


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






3. How do you calculate EER?






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






5. How many amps can 10 g wire handle?






6. In what length rolls is soft copper tubing normally available?






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






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






9. The fan switch closes at what temperature?






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






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






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






13. What is a package unit?






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






15. How is flexible duct supported?






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






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






18. How is nominal-sized tubing sized?






19. How many BTU's per ton?






20. 10 SEER is classified as what kind of efficiency?






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






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






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






24. What is considered normal operating conditions?






25. What is a package unit?






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






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






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






29. Where do you install a trap on a drain line?






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






31. How does ACR copper pipe come?






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






33. How do you calculate LRA?






34. What can cause a decrease in suction pressure on an air-conditioning system?






35. How many cfm per ton?






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






37. How are round ducts supported?

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


38. What is the normal evaporator temperature?






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






40. What do you use to check for leaks?






41. 8' round duct has a ballpark cfm of what?






42. 8' round duct has a ballpark cfm of what?






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






44. At what temperature will soft solder melt?






45. What is the typical temperature difference between a standard-efficiency condenser and the ambient temperature?






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






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






48. The furnace size is calculated by what?






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






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