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






3. Outdoor air cooled






4. Nonfrost






5. What is the function of a check valve?






6. Immersed evaporators are surrounded by what?






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






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






9. Evaporative condenser






10. List three uses for manual service valves.






11. List three uses for manual service valves.






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






13. Immersed evaporators are surrounded by what?






14. Frosting






15. Shell and tube






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






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






18. List 2 safety cutouts not used in domestic controls






19. Identify heat exchanger inlets and outlets






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






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






22. Defrost






23. What is commonly used to produce flake ice?






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






25. Shell and coil






26. Evaporative condenser






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






28. Frosting






29. Tube-within-a-tube






30. __ are used to minimize noise during compressor operations






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






32. What is the counterflow principle






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






34. Name two general Types of commercial compressors






35. Outdoor air cooled






36. Name two general Types of commercial compressors






37. Shell and coil






38. Shell and tube






39. Identify heat exchanger inlets and outlets






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






41. What is commonly used to produce flake ice?






42. List two types of two-temperature valves






43. Nonfrost






44. What is the counterflow principle






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






46. List two types of two-temperature valves






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






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






49. __ are used to minimize noise during compressor operations






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






Can you answer 50 questions in 15 minutes?



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