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






2. List two types of two-temperature valves






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






4. What is the function of a check valve?






5. Identify heat exchanger inlets and outlets






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






7. Shell and tube






8. Frosting






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






10. Frosting






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






12. Evaporative condenser






13. Name two general Types of commercial compressors






14. Shell and coil






15. Nonfrost






16. __ are used to minimize noise during compressor operations






17. Name two general Types of commercial compressors






18. Outdoor air cooled






19. List three uses for manual service valves.






20. What is the function of a check valve?






21. Evaporative condenser






22. What is commonly used to produce flake ice?






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






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






27. Identify heat exchanger inlets and outlets






28. List 2 safety cutouts not used in domestic controls






29. Outdoor air cooled






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






31. List three uses for manual service valves.






32. List 2 safety cutouts not used in domestic controls






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






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






35. Immersed evaporators are surrounded by what?






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






37. List two types of two-temperature valves






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






39. Tube-within-a-tube






40. Defrost






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






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






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






44. __ are used to minimize noise during compressor operations






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






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






47. What is commonly used to produce flake ice?






48. Nonfrost






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






50. Shell and tube