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. Tube-within-a-tube






3. Shell and coil






4. __ are used to minimize noise during compressor operations






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






6. Defrost






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






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






9. What is the function of a check valve?






10. Identify heat exchanger inlets and outlets






11. __ are used to minimize noise during compressor operations






12. Shell and coil






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






14. Immersed evaporators are surrounded by what?






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






16. Name two general Types of commercial compressors






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






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






19. Shell and tube






20. What is commonly used to produce flake ice?






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






22. Frosting






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






24. Outdoor air cooled






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






26. Evaporative condenser






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






28. What is the counterflow principle






29. Frosting






30. List two types of two-temperature valves






31. Identify heat exchanger inlets and outlets






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






33. Name two general Types of commercial compressors






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






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






36. List three uses for manual service valves.






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






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






39. Immersed evaporators are surrounded by what?






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






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






42. What is the counterflow principle






43. Tube-within-a-tube






44. List two types of two-temperature valves






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






46. List 2 safety cutouts not used in domestic controls






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






48. Nonfrost






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






50. Defrost