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. Shell and tube






2. Defrost






3. Shell and coil






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






5. Name two general Types of commercial compressors






6. Evaporative condenser






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






8. Name two general Types of commercial compressors






9. Frosting






10. Identify heat exchanger inlets and outlets






11. What is commonly used to produce flake ice?






12. What is the counterflow principle






13. List 2 safety cutouts not used in domestic controls






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






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






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






17. Outdoor air cooled






18. List two types of two-temperature valves






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






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






21. __ are used to minimize noise during compressor operations






22. Defrost






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






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






25. List three uses for manual service valves.






26. Immersed evaporators are surrounded by what?






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






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






29. Tube-within-a-tube






30. Nonfrost






31. Evaporative condenser






32. Shell and tube






33. What is the function of a check valve?






34. List 2 safety cutouts not used in domestic controls






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






36. Nonfrost






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






38. Tube-within-a-tube






39. What is the counterflow principle






40. List two types of two-temperature valves






41. What is commonly used to produce flake ice?






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






43. What is the function of a check valve?






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






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






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






47. List three uses for manual service valves.






48. Shell and coil






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






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