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. Defrost






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






3. List two types of two-temperature valves






4. What is commonly used to produce flake ice?






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






6. Evaporative condenser






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






8. Tube-within-a-tube






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






10. What is the counterflow principle






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






12. Shell and coil






13. What is the counterflow principle






14. __ are used to minimize noise during compressor operations






15. Frosting






16. Shell and coil






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






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






19. Nonfrost






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






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






22. What is the function of a check valve?






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






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






25. Outdoor air cooled






26. Tube-within-a-tube






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






28. Immersed evaporators are surrounded by what?






29. __ are used to minimize noise during compressor operations






30. What is the function of a check valve?






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






32. Name two general Types of commercial compressors






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






34. Shell and tube






35. Frosting






36. Evaporative condenser






37. Outdoor air cooled






38. Identify heat exchanger inlets and outlets






39. What is commonly used to produce flake ice?






40. Immersed evaporators are surrounded by what?






41. List two types of two-temperature valves






42. Defrost






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






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






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






46. Shell and tube






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






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






49. List 2 safety cutouts not used in domestic controls






50. List three uses for manual service valves.