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. Nonfrost






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






3. Identify heat exchanger inlets and outlets






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






5. Immersed evaporators are surrounded by what?






6. Shell and tube






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






8. List three uses for manual service valves.






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






10. Shell and tube






11. Tube-within-a-tube






12. Frosting






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






14. Identify heat exchanger inlets and outlets






15. Evaporative condenser






16. Frosting






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






18. List 2 safety cutouts not used in domestic controls






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






20. Defrost






21. What is the counterflow principle






22. Defrost






23. Outdoor air cooled






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






25. Tube-within-a-tube






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






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






28. Name two general Types of commercial compressors






29. What is the function of a check valve?






30. Shell and coil






31. What is the function of a check valve?






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






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






34. Immersed evaporators are surrounded by what?






35. Name two general Types of commercial compressors






36. List two types of two-temperature valves






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






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






39. What is commonly used to produce flake ice?






40. __ are used to minimize noise during compressor operations






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






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






43. Shell and coil






44. List two types of two-temperature valves






45. Outdoor air cooled






46. List three uses for manual service valves.






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






48. __ are used to minimize noise during compressor operations






49. Evaporative condenser






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