Test your basic knowledge |

Air Conditioning Basics

Subjects : industries, engineering
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. Identify heat exchanger inlets and outlets






2. Identify heat exchanger inlets and outlets






3. Name two general Types of commercial compressors






4. To eliminate uncertain pressure fluctuations - a ___ is used.






5. __ are used to minimize noise during compressor operations






6. What part of the metal is used in an all-metal pressure evaporator?






7. List two types of two-temperature valves






8. __ are used to minimize noise during compressor operations






9. Immersed evaporators are surrounded by what?






10. Identify two methods used to maintain proper head pressure in an outdoor air cooled condensing system






11. Outdoor air cooled






12. Defrost






13. What determines the opening or closing of the pressure-operated water regulating valve?






14. What is commonly used to produce flake ice?






15. A chemical used to eliminate moisture in a filter drier is known as a ___






16. Tube-within-a-tube






17. A device used to show a system is low on refrigerant is called a __. This sympton would indicate __ in this device.






18. When Temp difference between evaporators in a system is large - a ___ valve is used






19. Frosting






20. List 2 basic types of motor controls used in commercial refrigeration






21. Describe the difference in parallel and cross-Flow cooling towers






22. What part of the metal is used in an all-metal pressure evaporator?






23. In a hot gas defrost system - which parts of the system are heated?






24. A device used to show a system is low on refrigerant is called a __. This sympton would indicate __ in this device.






25. When Temp difference between evaporators in a system is large - a ___ valve is used






26. List the three commonly used types of natural convection evaporators.






27. Outdoor air cooled






28. Evaporative condenser






29. List three uses for manual service valves.






30. Frosting






31. In a hot gas defrost system - which parts of the system are heated?






32. What is the function of a check valve?






33. Identify two methods used to maintain proper head pressure in an outdoor air cooled condensing system






34. List two types of two-temperature valves






35. Evaporative condenser






36. Name two general Types of commercial compressors






37. A chemical used to eliminate moisture in a filter drier is known as a ___






38. Tube-within-a-tube






39. List 2 safety cutouts not used in domestic controls






40. What is the counterflow principle






41. Shell and coil






42. Describe the difference in parallel and cross-Flow cooling towers






43. List three uses for manual service valves.






44. List 2 safety cutouts not used in domestic controls






45. Shell and coil






46. List 2 basic types of motor controls used in commercial refrigeration






47. What is the counterflow principle






48. Nonfrost






49. Shell and tube






50. Shell and tube