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. What gauge is thermostat wire?
18 gauge
Dehydrated with caps on each end
A bypass duct or a dump zone
A bypass duct or a dump zone

2. How do you calculate the area of a circle?
20 A
Pi x radius squared
15% silphos
Blended refrigerants

3. What sort of pressure will a push-through evaporator have?
2 minutes
Positive
4
Belt drive and direct drive

4. How many amps can 10 g wire handle?
30 A
40 A
No
Duct with insulation on the inside

5. What are the two functions of the air-conditioning system?
To remove humidity and lower dry bulb temperature
105 degrees F
Staples and tape
200

6. How much superheat do you need to prevent liquid refrigerant from entering the compressor?
On the common terminal
Any amount
Nitrogen with a small amount of refrigerant
Individual return air systems and central return air systems

7. Which type of wire can handle a higher ampacity?
Stranded
Heat loss
30 degrees F
100 psig

8. What are normal conditions - as defined by the ARI.
40 A
Staples and tape
95 degrees F outside - 80 degrees F inside - and 50% relative humidity
2 minutes

9. The load on the evaporater will effect which pressure?
Suction
Standard
15% silphos
Subtract ambient temperature from 100

10. Which is more efficient - a TXV or a fixed-orifice metering device?
TXV
30 A
It rises
30-35 degrees above ambient

11. Will a dirty condenser cause a rise or fall in pressure?
Rise
Belt drive and direct drive
Positive
25-ft or 50-ft

12. If the rpm's are 750 - how many poles does the motor have?
8
Shorted winding - open winding - and grounded winding
Any amount
Dehydrated with caps on each end

13. What standard weight copper tubing is most often used in the heating and air-conditioning industry?
30 A
Staples and tape
A bypass duct or a dump zone
L-type

14. If the rpm's are 1750 - how many poles does the motor have?
Duct - electrical - and mechanical
400
30-35 degrees above ambient
4

15. What do you use to connect square and rectangular ductboard together?
Negative
200
4
S-clips and drives (cleats)

16. Square sheet metal duct is normally fabricated in a sheet metal shop and assembled in the field. (True or False)
A piston type metering device
True
Btu/hr (output) / wattage (input)
20 degrees F

17. On what terminal do you check amperage?
Common
45-55%
Inches of water column (in. WC)
Yes

18. Where is insulation used on copper tubing used for air-conditioning?
The suction line or the low-pressure side
A diffuser
Duct with insulation on the inside
Yes

19. 6' round duct has a ballpark cfm of what?
Indoor fan motor - outdoor fan motor - and the compressor
Belt drive and direct drive
Outside diameter (OD)
100

20. What do you use to check for leaks?
Nitrogen with a small amount of refrigerant
Outside diameter (OD)
They are larger
Nominal-sized tubing

21. How do you calculate cfm?

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

22. What do you use to check for leaks?
200
They are larger
They are physically larger
Nitrogen with a small amount of refrigerant

23. A reciprocating compressor has what sort of moving parts?
Pistons
They are larger
Duct - electrical - and mechanical
Indoor fan motor - outdoor fan motor - and the compressor

24. What can cause a decrease in suction pressure on an air-conditioning system?
A dirty evaporator
No
Subtract ambient temperature from 100
Duct - electrical - and mechanical

25. What is the difference between SEER and EER?
SEER includes the energy used in the start-up and shut-down cycles
105 degrees F
Standard
Heat load

26. The furnace size is calculated by what?
Heat loss
Average feet per minute X area in square feet (H' x W'/144)
RLA/FLA x 5
100 psig

27. What kind of copper tubing is used for plumbing and heating applications?
Outside diameter (OD)
Nominal-sized tubing
A piston type metering device
A diffuser

28. How much superheat do you need to prevent liquid refrigerant from entering the compressor?
Suction
In parallel
With a minimum of three evenly spaced self-tapping screws
Any amount

29. The fan switch closes at what temperature?
A bypass duct or a dump zone
140 degrees F
30 degrees F
Negative

30. Do you need a trap on a push-through evaporator?
No
Inclined manometer
40 degrees F
Staples and tape

31. How is nominal-sized tubing sized?
Compressor
When it is above a conditioned space
Inside diameter (ID)
Pistons

32. Why is it necessary to have multiple refrigerant circuits in some evaporator coils?
Common
To lower the amount of pressure drop through the coil
Slugging
A dirty evaporator

33. Where do you install a trap on a drain line?
TXV
5 degrees
With an are rating
Before the vent

34. What gauge is thermostat wire?
18 gauge
5 degrees
300
5 degrees

35. When must a copper joint never be soldered or brazed?
With 4' saddles
Outside of the male fitting
To lower the amount of pressure drop through the coil
When the system is under pressure

36. What is lined duct?
Heat load
Below 800 degrees F
Duct with insulation on the inside
15% silphos

37. What are the components of a hard-start kit?
Inclined manometer
Potential relay and start capacitor
30 A
Outside of the male fitting

38. Do you need a vent on a push-through evaporator?
Potential relay and start capacitor
12000
Yes
Below 800 degrees F

39. How is the high pressure switch wired with the low pressure switch?
100
In parallel
Heat loss
18 gauge

40. How is insulation around a duct rated?
18 gauge
18 gauge
With an are rating
RLA/FLA x 5

41. How are round ducts supported?

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

42. What percentage silver do you need to use for an are-410 system?
15% silphos
An air-conditioning system that has all four components (compressor - condenser - metering device - and evaporator) in one housing.
100
S-clips and drives (cleats)

43. How do you calculate the area of a circle?
Pi x radius squared
20 A
L-type
18 gauge

44. What tool is used to expand the diameter of soft copper tubing
A swaging tool
Inside diameter (ID)
150
15% silphos

45. The fan switch opens at what temperature?
True
Outside of the male fitting
105 degrees F
45 degrees F

46. What is the difference between SEER and EER?
8
When it is a pull-through evaporator
40 degrees F
SEER includes the energy used in the start-up and shut-down cycles

47. If the suction pressure rises - what happens to the head pressure?
On the common terminal
95 degrees F outside - 80 degrees F inside - and 50% relative humidity
It also rises
Inside diameter (ID)

48. How is nominal-sized tubing sized?
Below 800 degrees F
Nitrogen with a small amount of refrigerant
Inside diameter (ID)
Individual return air systems and central return air systems

49. What kind of refrigeratnts must be added in liquid form?
With an are rating
Yes
A swaging tool
Blended refrigerants

50. 7' round duct has a ballpark cfm of what?
High
150
The takeoff fitting
400

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