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






2. List two types of two-temperature valves






3. List two types of two-temperature valves






4. What is commonly used to produce flake ice?






5. __ are used to minimize noise during compressor operations






6. Name two general Types of commercial compressors






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






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






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






10. Outdoor air cooled






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






12. What is commonly used to produce flake ice?






13. List 2 safety cutouts not used in domestic controls






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






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






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






19. What is the counterflow principle






20. Identify heat exchanger inlets and outlets






21. List three uses for manual service valves.






22. What is the function of a check valve?






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






24. Shell and tube






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






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






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






28. Defrost






29. List 2 safety cutouts not used in domestic controls






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






31. Evaporative condenser






32. Identify heat exchanger inlets and outlets






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






34. What is the function of a check valve?






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






36. Tube-within-a-tube






37. Shell and tube






38. Evaporative condenser






39. __ are used to minimize noise during compressor operations






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






41. Tube-within-a-tube






42. Outdoor air cooled






43. List three uses for manual service valves.






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






45. Shell and coil






46. Nonfrost






47. Frosting






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






49. Frosting






50. Shell and coil