Test your basic knowledge |

Residential Air Conditioning

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. At what temperature will soft solder melt?
Dehydrated with caps on each end
140 degrees F
Pi x radius squared
Below 800 degrees F

2. When do you install an auxillary drain pan?
18 gauge
When it is above a conditioned space
The suction line or the low-pressure side
With a minimum of three evenly spaced self-tapping screws

3. What are the four materials used to make duct?
Sheet metal - galvanized sheet metal - fiberglass - and flexduct
When it is a pull-through evaporator
A diffuser
It will have a decrease in superheat

4. What are the three pressures created by moving air in ductwork?
100 psig
With a minimum of three evenly spaced self-tapping screws
Static pressure - velocity pressure - and total pressure
Stranded

5. In what length rolls is soft copper tubing normally available?
They are larger
25-ft or 50-ft
Yes
Staples and tape

6. What component changes refrigerant from a low pressure gas to a high pressure gas?
Compressor
Before the vent
A band 4 inches or more in width
Boil the liquid refrigerant out ot the oil within the crankcase

7. 13 SEER is classified as what kind of efficiency?
High
With an are rating
45-55%
A bypass duct or a dump zone

8. Does a package unit come from the factory pre-charged?
When the system is under pressure
Yes
Infiltration and ventilation
15 A

9. Superheat should never be below how many degrees
5 degrees
30 degrees F
400
When it is above a conditioned space

10. Can refrigerant line sets be altered in length?
Yes
It will be high
To lower the amount of pressure drop through the coil
SEER includes the energy used in the start-up and shut-down cycles

11. How is insulation around a duct rated?
With an are rating
30-35 degrees above ambient
It rises
95 degrees F outside - 80 degrees F inside - and 50% relative humidity

12. If pressure rises - what happens to the superheat?
False
An air-conditioning system that has all four components (compressor - condenser - metering device - and evaporator) in one housing.
It rises
Over 800 degrees F

13. What are the two functions of the air-conditioning system?
It rises
Yes
To remove humidity and lower dry bulb temperature
Yes

14. How is the high pressure switch wired with the low pressure switch?
In parallel
Positive
Static pressure - velocity pressure - and total pressure
Side-by-side and over-and-under

15. How many cfm per ton?
ACR (air-conditioning refrigeration) tubing
Yes
400
95 degrees F outside - 80 degrees F inside - and 50% relative humidity

16. If the suction pressure rises - what happens to the head pressure?
It also rises
No
Nominal-sized tubing
Belt drive and direct drive

17. Pressure in ductwork is measured In what?
Yes
A swaging tool
Inches of water column (in. WC)
4

18. How long should you leave a system off once you kill power before restarting it?
It also rises
2 minutes
A diffuser
Belt drive and direct drive

19. What standard weight copper tubing is most often used in the heating and air-conditioning industry?
With 4' saddles
L-type
A swaging tool
Yes

20. 9' round duct has a ballpark cfm of what?
To remove humidity and lower dry bulb temperature
40 degrees F
400
300

21. What sort of pressure will a pull-through evaporator have?
Slugging
Side-by-side and over-and-under
Stranded
Negative

22. How is ACR tubing sized?
Indoor fan motor - outdoor fan motor - and the compressor
150
Outside diameter (OD)
5 degrees

23. How is nominal-sized tubing sized?
15% silphos
Heat loss
Stranded
Inside diameter (ID)

24. How are round ducts connected to one another?
With a minimum of three evenly spaced self-tapping screws
8-12 degrees F
Duct - electrical - and mechanical
45 degrees F

25. What do you do after you braze a system?
Duct with insulation on the inside
It also rises
High
Pull a vacuum

26. What kind of copper tubing is used for plumbing and heating applications?
Inches of water column (in. WC)
100
15 A
Nominal-sized tubing

27. The A/C size is calculated by what?
A dirty evaporator
Outside diameter (OD)
Stranded
Heat load

28. What percentage silver do you need to use for an are-410 system?
15% silphos
True
150
S-clips and drives (cleats)

29. What are the two types of package units?
Btu/hr (output) / wattage (input)
Heat load
Side-by-side and over-and-under
High

30. How is flexible duct supported?
2
On the common terminal
A band 4 inches or more in width
Nitrogen with a small amount of refrigerant

31. What is it called when liquid refrigerant gets into the compressor?
20 degrees F
A diffuser
Slugging
Nitrogen with a small amount of refrigerant

32. What is the design boiling point for most evaporator coils in residential air conditioning?
It will be low
40 degrees F
With a minimum of three evenly spaced self-tapping screws
Nitrogen with a small amount of refrigerant

33. Do you need a vent on a push-through evaporator?
Yes
S-clips and drives (cleats)
Potential relay and start capacitor
TXV

34. Where do you check the amps on a motor?
When the system is under pressure
200
100 psig
On the common terminal

35. Why is it necessary to have multiple refrigerant circuits in some evaporator coils?
To lower the amount of pressure drop through the coil
On the common terminal
40 degrees F
20 degrees F

36. 8' round duct has a ballpark cfm of what?
Fiberglass
SEER includes the energy used in the start-up and shut-down cycles
L-type
200

37. The furnace size is calculated by what?
Heat loss
Suction
Blended refrigerants
Negative

38. Which type of wire can handle a higher ampacity?
95 degrees F outside - 80 degrees F inside - and 50% relative humidity
No
Pistons
Stranded

39. What is used to measure static air pressure in ducts.
Latent and sensible
Negative
Yes
Inclined manometer

40. A reciprocating compressor has what sort of moving parts?
105 degrees F
Pistons
High
Belt drive and direct drive

41. If the rpm's are 3450 - how many poles does the motor have?
Pistons
18 gauge
2
It will be high

42. 9' round duct has a ballpark cfm of what?
Pull a vacuum
30 degrees F
300
Inches of water column (in. WC)

43. What type of air conditioning system must be charged using the superheat method?
True
75 degrees F dry bulb indoor - 95 degrees F drybulb outdoor - and 50% relative humidity
A piston type metering device
30-35 degrees above ambient

44. The evaporator is designed to remove what two types of heat?
In series
Inches of water column (in. WC)
Latent and sensible
With a minimum of three evenly spaced self-tapping screws

45. How do you calculate cfm?

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

46. What is the name of the fitting where the branch line leaves the duct?
45 degrees F
Potential relay and start capacitor
The takeoff fitting
25-ft or 50-ft

47. 6' round duct has a ballpark cfm of what?
100
On the common terminal
15% silphos
RLA/FLA x 5

48. The fan switch closes at what temperature?
140 degrees F
No
40 degrees F
30 A

49. The fan switch closes at what temperature?
Suction
15% silphos
140 degrees F
Inside diameter (ID)

50. When must a copper joint never be soldered or brazed?
A bypass duct or a dump zone
When the system is under pressure
Outside diameter (OD)
Vapor

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 |

Residential Air Conditioning

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