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






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






3. What is the counterflow principle






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






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






6. List three uses for manual service valves.






7. What is the counterflow principle






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






9. Name two general Types of commercial compressors






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






11. Shell and coil






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






13. Immersed evaporators are surrounded by what?






14. __ are used to minimize noise during compressor operations






15. Identify heat exchanger inlets and outlets






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






17. Shell and coil






18. Tube-within-a-tube






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






20. What is commonly used to produce flake ice?






21. List two types of two-temperature valves






22. Outdoor air cooled






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






24. List 2 safety cutouts not used in domestic controls






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






26. Immersed evaporators are surrounded by what?






27. What is commonly used to produce flake ice?






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






29. Tube-within-a-tube






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






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






32. List two types of two-temperature valves






33. Defrost






34. Identify heat exchanger inlets and outlets






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






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






37. Nonfrost






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






39. What is the function of a check valve?






40. Defrost






41. Outdoor air cooled






42. List 2 safety cutouts not used in domestic controls






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






44. Evaporative condenser






45. Evaporative condenser






46. Nonfrost






47. __ are used to minimize noise during compressor operations






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






49. Shell and tube






50. Frosting