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?
Potential relay and start capacitor
With a minimum of three evenly spaced self-tapping screws
Below 800 degrees F
Individual return air systems and central return air systems

2. What are the four materials used to make duct?
Yes
Sheet metal - galvanized sheet metal - fiberglass - and flexduct
400
40 degrees F

3. What are the four materials used to make duct?
It will be low
25-ft or 50-ft
Sheet metal - galvanized sheet metal - fiberglass - and flexduct
15 A

4. How is nominal-sized tubing sized?
To lower the amount of pressure drop through the coil
TXV
Inside diameter (ID)
30-35 degrees above ambient

5. The furnace size is calculated by what?
Heat loss
Slugging
When the system is under pressure
No

6. What kind of copper tubing is used for plumbing and heating applications?
Nominal-sized tubing
A piston type metering device
Inside diameter (ID)
20 degrees above ambient

7. How does ACR copper pipe come?
25-ft or 50-ft
Suction
Inclined manometer
Dehydrated with caps on each end

8. How many amps can 14 g wire handle?
20 degrees above ambient
A swaging tool
15 A
Below 800 degrees F

9. How many cfm per ton?
95 degrees F outside - 80 degrees F inside - and 50% relative humidity
Over/under and side by side
Infiltration and ventilation
400

10. How much does a drain line need to drop per foot of length?

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

11. What is the difference between SEER and EER?
With a minimum of three evenly spaced self-tapping screws
Inside diameter (ID)
Infiltration and ventilation
SEER includes the energy used in the start-up and shut-down cycles

12. A reciprocating compressor has what sort of moving parts?
Vapor
Indoor fan motor - outdoor fan motor - and the compressor
Pistons
2 minutes

13. The evaporator is designed to remove what two types of heat?
45-55%
Latent and sensible
High
Btu/hr (output) / wattage (input)

14. A reciprocating compressor has what sort of moving parts?
Yes
2
The suction line or the low-pressure side
Pistons

15. How are the condenser coils different on a high-efficiency unit?
Yes
Pistons
Fiberglass
They are larger

16. How many BTU's per ton?
Outside of the male fitting
On the common terminal
20 degrees above ambient
12000

17. What are the three pressures created by moving air in ductwork?
Static pressure - velocity pressure - and total pressure
Over 800 degrees F
When it is above a conditioned space
An air-conditioning system that has all four components (compressor - condenser - metering device - and evaporator) in one housing.

18. How do you calculate cfm?

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

19. What standard weight copper tubing is most often used in the heating and air-conditioning industry?
Pull a vacuum
False
To keep refrigerant from absorbing heat and to prevent condensation from forming on the line
L-type

20. Do you need a vent on a push-through evaporator?
Yes
It will have a decrease in superheat
Inclined manometer
It also rises

21. If pressure rises - what happens to the superheat?
Inches of water column (in. WC)
It rises
No
Average feet per minute X area in square feet (H' x W'/144)

22. How much does a drain line need to drop per foot of length?

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

23. 13 SEER is classified as what kind of efficiency?
It will be high
Duct - electrical - and mechanical
Common
High

24. When do you install an auxillary drain pan?
When it is above a conditioned space
Heat loss
20 degrees above ambient
Btu/hr (output) / wattage (input)

25. Do you need a vent on a pull-through evaporator?
1/4'
ACR (air-conditioning refrigeration) tubing
Yes
4

26. What is the typical temperature difference between a high-efficiency condenser and the ambient temperature?
30 A
6
SEER includes the energy used in the start-up and shut-down cycles
20 degrees F

27. 8' round duct has a ballpark cfm of what?
An air-conditioning system that has all four components (compressor - condenser - metering device - and evaporator) in one housing.
A bypass duct or a dump zone
Average feet per minute X area in square feet (H' x W'/144)
200

28. 7' round duct has a ballpark cfm of what?
No
Individual return air systems and central return air systems
It will be high
150

29. What are the two basic duct connection configurations for package units supply and return air ducts?
Over/under and side by side
Average feet per minute X area in square feet (H' x W'/144)
Average feet per minute X area in square feet (H' x W'/144)
A swaging tool

30. Which type of wire can handle a higher ampacity?
Standard
Latent and sensible
When the system is under pressure
Stranded

31. How do you calculate the area of a circle?
Any amount
Standard
Pi x radius squared
TXV

32. Can refrigerant line sets be altered in length?
Yes
By increasing the surface of the condenser coil
40 A
Stranded

33. How is the high pressure switch wired with the low pressure switch?
Inside diameter (ID)
In parallel
It rises
With 4' saddles

34. What is the name of the fitting where the branch line leaves the duct?
Negative
By increasing the surface of the condenser coil
The takeoff fitting
Infiltration and ventilation

35. 7' round duct has a ballpark cfm of what?
In series
40 degrees F
150
Yes

36. Where do you apply flux when soldering?
Side-by-side and over-and-under
Outside of the male fitting
2
6

37. What kind of copper tubing is used for refrigeration or air-conditioning applications?
ACR (air-conditioning refrigeration) tubing
100
False
Inside diameter (ID)

38. How many cfm per ton?
400
Positive
150
A swaging tool

39. What percentage silver do you use to braze two dissimilar metals such as steel and copper?
Rise
45-55%
With a minimum of three evenly spaced self-tapping screws
Duct with insulation on the inside

40. How many amps can 14 g wire handle?
It will be high
15 A
Static pressure - velocity pressure - and total pressure
Heat load

41. What is the typical pressure differance across a TXV?
100 psig
TXV
With an are rating
Stranded

42. How will too much refrigerant effect superheat?
25-ft or 50-ft
Outside diameter (OD)
40 degrees F
It will be low

43. What is the typical temperature difference between a high-efficiency condenser and the ambient temperature?
30-35 degrees above ambient
20 degrees F
An air-conditioning system that has all four components (compressor - condenser - metering device - and evaporator) in one housing.
L-type

44. What are the three ways a motor can fail electrically?
Dehydrated with caps on each end
200
Shorted winding - open winding - and grounded winding
30-35 degrees above ambient

45. What is the range for normal superheat and subcooling?
No
8-12 degrees F
Positive
Dehydrated with caps on each end

46. At what temperature does refrigerant condense in a high-efficiency unit?
High
100
Pi x radius squared
20 degrees above ambient

47. How do you calculate EER?
1/4'
When the system is under pressure
20 degrees F
Btu/hr (output) / wattage (input)

48. Why is it necessary to have multiple refrigerant circuits in some evaporator coils?
Common
Duct with insulation on the inside
Infiltration and ventilation
To lower the amount of pressure drop through the coil

49. Sections of duct board can be fastened together with what?
Average feet per minute X area in square feet (H' x W'/144)
Over 800 degrees F
Dehydrated with caps on each end
Staples and tape

50. What are the three crafts normally associated with an air-conditioned installation?
Duct - electrical - and mechanical
Sheet metal - galvanized sheet metal - fiberglass - and flexduct
Inside diameter (ID)
A piston type metering device

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