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. Outdoor air cooled






2. What is the function of a check valve?






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






4. Shell and tube






5. __ are used to minimize noise during compressor operations






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






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






8. Tube-within-a-tube






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






10. List 2 safety cutouts not used in domestic controls






11. Nonfrost






12. What is commonly used to produce flake ice?






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






14. Evaporative condenser






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






16. What is commonly used to produce flake ice?






17. List three uses for manual service valves.






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






19. Immersed evaporators are surrounded by what?






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






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






22. Outdoor air cooled






23. Identify heat exchanger inlets and outlets






24. __ are used to minimize noise during compressor operations






25. List three uses for manual service valves.






26. List 2 safety cutouts not used in domestic controls






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






28. Name two general Types of commercial compressors






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






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






31. Defrost






32. Tube-within-a-tube






33. Frosting






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






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






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






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






38. Name two general Types of commercial compressors






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






40. What is the function of a check valve?






41. Identify heat exchanger inlets and outlets






42. List two types of two-temperature valves






43. What is the counterflow principle






44. Immersed evaporators are surrounded by what?






45. Shell and tube






46. Evaporative condenser






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






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






49. List two types of two-temperature valves






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