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. Immersed evaporators are surrounded by what?






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






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






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






5. Frosting






6. What is the function of a check valve?






7. What is commonly used to produce flake ice?






8. Outdoor air cooled






9. Shell and coil






10. Name two general Types of commercial compressors






11. Defrost






12. Evaporative condenser






13. List three uses for manual service valves.






14. Tube-within-a-tube






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






16. Identify heat exchanger inlets and outlets






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






18. Name two general Types of commercial compressors






19. Identify heat exchanger inlets and outlets






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






21. Tube-within-a-tube






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






23. What is the counterflow principle






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






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






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






27. List two types of two-temperature valves






28. __ are used to minimize noise during compressor operations






29. List 2 safety cutouts not used in domestic controls






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






31. What is the counterflow principle






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






33. Nonfrost






34. Defrost






35. Shell and tube






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






37. Shell and coil






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






39. Frosting






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






41. List two types of two-temperature valves






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






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






44. List 2 safety cutouts not used in domestic controls






45. What is commonly used to produce flake ice?






46. Outdoor air cooled






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






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






49. List three uses for manual service valves.






50. Nonfrost