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






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






3. Outdoor air cooled






4. Identify heat exchanger inlets and outlets






5. Shell and coil






6. __ are used to minimize noise during compressor operations






7. What is commonly used to produce flake ice?






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






9. Immersed evaporators are surrounded by what?






10. List two types of two-temperature valves






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






12. Outdoor air cooled






13. What is commonly used to produce flake ice?






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






15. Nonfrost






16. Nonfrost






17. What is the function of a check valve?






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






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






20. What is the counterflow principle






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






22. Shell and coil






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






24. Evaporative condenser






25. Name two general Types of commercial compressors






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






27. Frosting






28. List 2 safety cutouts not used in domestic controls






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






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






31. List 2 safety cutouts not used in domestic controls






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






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






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






35. Evaporative condenser






36. Shell and tube






37. List three uses for manual service valves.






38. Name two general Types of commercial compressors






39. Defrost






40. Frosting






41. List two types of two-temperature valves






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






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






44. What is the function of a check valve?






45. Shell and tube






46. Tube-within-a-tube






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






48. __ are used to minimize noise during compressor operations






49. Identify heat exchanger inlets and outlets






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