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






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






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






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






5. List 2 safety cutouts not used in domestic controls






6. Identify heat exchanger inlets and outlets






7. Shell and tube






8. Evaporative condenser






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






10. List two types of two-temperature valves






11. __ are used to minimize noise during compressor operations






12. Nonfrost






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






14. Frosting






15. Tube-within-a-tube






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






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






18. Defrost






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






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






21. Immersed evaporators are surrounded by what?






22. Name two general Types of commercial compressors






23. __ are used to minimize noise during compressor operations






24. Defrost






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






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






29. What is the function of a check valve?






30. Frosting






31. Tube-within-a-tube






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






33. What is commonly used to produce flake ice?






34. List three uses for manual service valves.






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






36. What is the counterflow principle






37. Name two general Types of commercial compressors






38. Identify heat exchanger inlets and outlets






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






40. What is the function of a check valve?






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






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






43. What is the counterflow principle






44. Immersed evaporators are surrounded by what?






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






46. Outdoor air cooled






47. Outdoor air cooled






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






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






50. Evaporative condenser