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






2. Shell and coil






3. List two types of two-temperature valves






4. List 2 safety cutouts not used in domestic controls






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






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






7. List three uses for manual service valves.






8. __ are used to minimize noise during compressor operations






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






10. List two types of two-temperature valves






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






12. List three uses for manual service valves.






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






14. Name two general Types of commercial compressors






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






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






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






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






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






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






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






22. Frosting






23. What is the counterflow principle






24. Identify heat exchanger inlets and outlets






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






26. Defrost






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






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






29. Shell and tube






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






31. Evaporative condenser






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






33. Immersed evaporators are surrounded by what?






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






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






36. Defrost






37. Immersed evaporators are surrounded by what?






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






39. What is commonly used to produce flake ice?






40. Tube-within-a-tube






41. What is the function of a check valve?






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






43. Outdoor air cooled






44. Shell and tube






45. What is commonly used to produce flake ice?






46. Identify heat exchanger inlets and outlets






47. Tube-within-a-tube






48. What is the function of a check valve?






49. __ are used to minimize noise during compressor operations






50. Outdoor air cooled