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. Evaporative condenser






3. Nonfrost






4. Defrost






5. Outdoor air cooled






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






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






8. Frosting






9. List two types of two-temperature valves






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






11. What is the function of a check valve?






12. Identify heat exchanger inlets and outlets






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






14. List three uses for manual service valves.






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






16. Frosting






17. List 2 safety cutouts not used in domestic controls






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






19. Name two general Types of commercial compressors






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






21. What is commonly used to produce flake ice?






22. What is commonly used to produce flake ice?






23. Immersed evaporators are surrounded by what?






24. Evaporative condenser






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






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






27. List two types of two-temperature valves






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






29. Shell and coil






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






31. __ are used to minimize noise during compressor operations






32. Name two general Types of commercial compressors






33. __ are used to minimize noise during compressor operations






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






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






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






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






38. Tube-within-a-tube






39. Identify heat exchanger inlets and outlets






40. Shell and tube






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






42. List 2 safety cutouts not used in domestic controls






43. Nonfrost






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






45. Defrost






46. What is the function of a check valve?






47. Shell and tube






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






49. Immersed evaporators are surrounded by what?






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