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 is the counterflow principle






2. Tube-within-a-tube






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






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






5. Shell and coil






6. Defrost






7. What is the counterflow principle






8. List three uses for manual service valves.






9. Name two general Types of commercial compressors






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






11. Immersed evaporators are surrounded by what?






12. Shell and tube






13. Nonfrost






14. __ are used to minimize noise during compressor operations






15. List 2 safety cutouts not used in domestic controls






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






17. Outdoor air cooled






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






19. What is commonly used to produce flake ice?






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






21. Shell and coil






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






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






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






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






26. Frosting






27. What is commonly used to produce flake ice?






28. Nonfrost






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






30. What is the function of a check valve?






31. Name two general Types of commercial compressors






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






33. Evaporative condenser






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






35. Tube-within-a-tube






36. List two types of two-temperature valves






37. Identify heat exchanger inlets and outlets






38. What is the function of a check valve?






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






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






41. List two types of two-temperature valves






42. Outdoor air cooled






43. Shell and tube






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






45. Defrost






46. Frosting






47. Evaporative condenser






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






49. __ are used to minimize noise during compressor operations






50. Immersed evaporators are surrounded by what?