Test your basic knowledge |

Air Conditioning Basics

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 commonly used to produce flake ice?
High Pressure and Oil Pressure
Determining operation pressures - Charge or Discharge system - Remove any part without disturbing other parts
Auger
Partially fill condenser with liquid refrig. -Slow condenser fans -Close ambient air louvers -Heat Condenser

2. Tube-within-a-tube
Two temperature
Auger
Low temp and Frozen Foods
Water passing through inside tube cools refrigerant in outer tube

3. What determines the opening or closing of the pressure-operated water regulating valve?
Temps above 32F
Thermostatic and Pressure control
Condensor pressure acting on bellows.
High Pressure and Oil Pressure

4. Immersed evaporators are surrounded by what?
Surge Tank
Water - a beverage - or brine
Water is sprayed on it to cool it
Condensor pressure acting on bellows.

5. Name two general Types of commercial compressors
To prevent flow of refrigerant in the wrong direction.
To prevent flow of refrigerant in the wrong direction.
Condenser placed outside building
Hermatic and external drive

6. To eliminate uncertain pressure fluctuations - a ___ is used.
Partially fill condenser with liquid refrig. -Slow condenser fans -Close ambient air louvers -Heat Condenser
Frosting - Defrosting - Non frosting
Surge Tank
Need to remove frost

7. List three uses for manual service valves.
Determining operation pressures - Charge or Discharge system - Remove any part without disturbing other parts
Coil of water tubing inside the shell rather than a straight tube
Pressure operated and Temperature operated
Condenser and evaporator

8. Frosting
Frosting - Defrosting - Non frosting
Low temp and Frozen Foods
To prevent flow of refrigerant in the wrong direction.
Need to remove frost

9. List two types of two-temperature valves
Pressure operated and Temperature operated
Temps above 32F
Condenser placed outside building
Water passing through inside tube cools refrigerant in outer tube

10. Defrost
Auger
Pressure operated and Temperature operated
Need to remove frost
Determining operation pressures - Charge or Discharge system - Remove any part without disturbing other parts

11. Name two general Types of commercial compressors
Determining operation pressures - Charge or Discharge system - Remove any part without disturbing other parts
Water - a beverage - or brine
The condenser uses a counterflow fan
Hermatic and external drive

12. List 2 basic types of motor controls used in commercial refrigeration
Water passing through inside tube cools refrigerant in outer tube
Hermatic and external drive
Water is sprayed on it to cool it
Thermostatic and Pressure control

13. Tube-within-a-tube
Partially fill condenser with liquid refrig. -Slow condenser fans -Close ambient air louvers -Heat Condenser
Coil of water tubing inside the shell rather than a straight tube
Condensor pressure acting on bellows.
Water passing through inside tube cools refrigerant in outer tube

14. When Temp difference between evaporators in a system is large - a ___ valve is used
Condenser and evaporator
Auger
Water - a beverage - or brine
Two temperature

15. Identify two methods used to maintain proper head pressure in an outdoor air cooled condensing system
Determining operation pressures - Charge or Discharge system - Remove any part without disturbing other parts
Hermatic and external drive
Partially fill condenser with liquid refrig. -Slow condenser fans -Close ambient air louvers -Heat Condenser
Water passing through inside tube cools refrigerant in outer tube

16. __ are used to minimize noise during compressor operations
Thermostatic and Pressure control
Sightglass - low refrigerant caused by bubbles in sightglass
Mufflers
Auger

17. To eliminate uncertain pressure fluctuations - a ___ is used.
Water is cooled more in the cross-flow due to the continuous blowing of cold air over the water.
Surge Tank
Compact - needs no fans - and combines the condenser and receiver into one.
Suction and liquid lines

18. Shell and tube
High Pressure and Oil Pressure
Temps above 32F
Compact - needs no fans - and combines the condenser and receiver into one.
Mufflers

19. List 2 basic types of motor controls used in commercial refrigeration
Pressure operated and Temperature operated
Water is cooled more in the cross-flow due to the continuous blowing of cold air over the water.
Thermostatic and Pressure control
Condenser placed outside building

20. List three uses for manual service valves.
The condenser uses a counterflow fan
Determining operation pressures - Charge or Discharge system - Remove any part without disturbing other parts
Two temperature
Thermostatic and Pressure control

21. Evaporative condenser
Suction and liquid lines
Water is sprayed on it to cool it
Need to remove frost
Condensor pressure acting on bellows.

22. When Temp difference between evaporators in a system is large - a ___ valve is used
Determining operation pressures - Charge or Discharge system - Remove any part without disturbing other parts
Condenser and evaporator
Two temperature
Sightglass - low refrigerant caused by bubbles in sightglass

23. A chemical used to eliminate moisture in a filter drier is known as a ___
Desiccant chemical
Condenser and evaporator
Sightglass - low refrigerant caused by bubbles in sightglass
Partially fill condenser with liquid refrig. -Slow condenser fans -Close ambient air louvers -Heat Condenser

24. Shell and coil
Copper and cast aluminum
Auger
Coil of water tubing inside the shell rather than a straight tube
Frosting - Defrosting - Non frosting

25. Nonfrost
Temps above 32F
Thermostatic and Pressure control
The condenser uses a counterflow fan
Hermatic and external drive

26. A chemical used to eliminate moisture in a filter drier is known as a ___
Hermatic and external drive
Condenser and evaporator
Mufflers
Desiccant chemical

27. Frosting
Water passing through inside tube cools refrigerant in outer tube
Water - a beverage - or brine
Condenser placed outside building
Low temp and Frozen Foods

28. A device used to show a system is low on refrigerant is called a __. This sympton would indicate __ in this device.
Partially fill condenser with liquid refrig. -Slow condenser fans -Close ambient air louvers -Heat Condenser
Sightglass - low refrigerant caused by bubbles in sightglass
High Pressure and Oil Pressure
Hermatic and external drive

29. Defrost
Auger
Frosting - Defrosting - Non frosting
Water - a beverage - or brine
Need to remove frost

30. Shell and tube
Compact - needs no fans - and combines the condenser and receiver into one.
Copper and cast aluminum
Temps above 32F
The condenser uses a counterflow fan

31. List the three commonly used types of natural convection evaporators.
To prevent flow of refrigerant in the wrong direction.
Partially fill condenser with liquid refrig. -Slow condenser fans -Close ambient air louvers -Heat Condenser
Frosting - Defrosting - Non frosting
Water is sprayed on it to cool it

32. What determines the opening or closing of the pressure-operated water regulating valve?
Copper and cast aluminum
High Pressure and Oil Pressure
Condensor pressure acting on bellows.
The condenser uses a counterflow fan

33. What part of the metal is used in an all-metal pressure evaporator?
High Pressure and Oil Pressure
Partially fill condenser with liquid refrig. -Slow condenser fans -Close ambient air louvers -Heat Condenser
Surge Tank
Copper and cast aluminum

34. Immersed evaporators are surrounded by what?
Need to remove frost
Water - a beverage - or brine
Sightglass - low refrigerant caused by bubbles in sightglass
Water is cooled more in the cross-flow due to the continuous blowing of cold air over the water.

35. In a hot gas defrost system - which parts of the system are heated?
Surge Tank
Water is sprayed on it to cool it
Water passing through inside tube cools refrigerant in outer tube
Condenser and evaporator

36. List the three commonly used types of natural convection evaporators.
Frosting - Defrosting - Non frosting
Pressure operated and Temperature operated
Sightglass - low refrigerant caused by bubbles in sightglass
Copper and cast aluminum

37. Evaporative condenser
Determining operation pressures - Charge or Discharge system - Remove any part without disturbing other parts
Condenser placed outside building
Coil of water tubing inside the shell rather than a straight tube
Water is sprayed on it to cool it

38. List 2 safety cutouts not used in domestic controls
Condenser and evaporator
Condensor pressure acting on bellows.
High Pressure and Oil Pressure
Pressure operated and Temperature operated

39. __ are used to minimize noise during compressor operations
Need to remove frost
Mufflers
Thermostatic and Pressure control
Partially fill condenser with liquid refrig. -Slow condenser fans -Close ambient air louvers -Heat Condenser

40. What is the counterflow principle
The condenser uses a counterflow fan
Low temp and Frozen Foods
Thermostatic and Pressure control
Sightglass - low refrigerant caused by bubbles in sightglass

41. Describe the difference in parallel and cross-Flow cooling towers
Water is cooled more in the cross-flow due to the continuous blowing of cold air over the water.
High Pressure and Oil Pressure
Water is sprayed on it to cool it
Mufflers

42. What is commonly used to produce flake ice?
Auger
Determining operation pressures - Charge or Discharge system - Remove any part without disturbing other parts
Mufflers
Determining operation pressures - Charge or Discharge system - Remove any part without disturbing other parts

43. Outdoor air cooled
Auger
Pressure operated and Temperature operated
Condenser placed outside building
Condenser and evaporator

44. Describe the difference in parallel and cross-Flow cooling towers
Water - a beverage - or brine
Water is cooled more in the cross-flow due to the continuous blowing of cold air over the water.
Low temp and Frozen Foods
Determining operation pressures - Charge or Discharge system - Remove any part without disturbing other parts

45. Outdoor air cooled
To prevent flow of refrigerant in the wrong direction.
Condenser placed outside building
Coil of water tubing inside the shell rather than a straight tube
Determining operation pressures - Charge or Discharge system - Remove any part without disturbing other parts

46. List two types of two-temperature valves
Pressure operated and Temperature operated
Water - a beverage - or brine
Mufflers
Thermostatic and Pressure control

47. Shell and coil
Need to remove frost
Desiccant chemical
Coil of water tubing inside the shell rather than a straight tube
To prevent flow of refrigerant in the wrong direction.

48. Identify heat exchanger inlets and outlets
Suction and liquid lines
Water is sprayed on it to cool it
Condensor pressure acting on bellows.
Copper and cast aluminum

49. What is the counterflow principle
The condenser uses a counterflow fan
To prevent flow of refrigerant in the wrong direction.
Surge Tank
Two temperature

50. List 2 safety cutouts not used in domestic controls
Suction and liquid lines
To prevent flow of refrigerant in the wrong direction.
Condensor pressure acting on bellows.
High Pressure and Oil Pressure

Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?

Major Subjects
Tests & Exams AP CLEP DSST GRE SAT GMAT	Certifications CISSP go to https://www.isc2.org/ PMP ITIL RHCE MCTS More...	IT Skills Android Programming Data Modeling Objective C Programming Basic Python Programming Adobe Illustrator More...	Business Skills Advertising Techniques Business Accounting Basics Business Strategy Human Resource Management Marketing Basics More...
Soft Skills Body Language People Skills Public Speaking Persuasion Job Hunting And Resumes More...	Vocabulary GRE Vocab SAT Vocab TOEFL Essential Vocab Basic English Words For All Global Words You Should Know Business English More...	Languages AP German Vocab AP Latin Vocab SAT Subject Test: French Italian Survival Norwegian Survival More...	Engineering Audio Engineering Computer Science Engineering Aerospace Engineering Chemical Engineering Structural Engineering More...
Health Sciences Basic Nursing Skills Health Science Language Fundamentals Veterinary Technology Medical Language Cardiology Clinical Surgery More...	English Grammar Fundamentals Literary And Rhetorical Vocab Elements Of Style Vocab Introduction To English Major Complete Advanced Sentences Literature Homonyms More...	Math Algebra Formulas Basic Arithmetic: Measurements Metric Conversions Geometric Properties Important Math Facts Number Sense Vocab Business Math More...	Other Major Subjects Science Economics History Law Performing-arts Cooking Logic & Reasoning Trivia

Test your basic knowledge |

Air Conditioning Basics

Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?

Let me suggest you:

Browse all subjects

Browse all tests

Most popular tests

Major Subjects

Tests & Exams

Certifications

IT Skills

Business Skills

Soft Skills

Vocabulary

Languages

Engineering

Health Sciences

English

Math

Other Major Subjects

Browse all subjects

Browse all tests

Most popular tests