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 sort of pressure will a pull-through evaporator have?
SEER includes the energy used in the start-up and shut-down cycles
In series
Standard
Negative

2. How is ACR tubing sized?
High
Outside diameter (OD)
TXV
The suction line or the low-pressure side

3. At what temperature will brazing melt?
Pistons
Potential relay and start capacitor
Over 800 degrees F
With 4' saddles

4. What is considered normal operating conditions?
ACR (air-conditioning refrigeration) tubing
It also rises
Shorted winding - open winding - and grounded winding
75 degrees F dry bulb indoor - 95 degrees F drybulb outdoor - and 50% relative humidity

5. What gauge is thermostat wire?
Duct with insulation on the inside
18 gauge
TXV
To remove humidity and lower dry bulb temperature

6. How is the high pressure switch wired with the low pressure switch?
A piston type metering device
Fiberglass
Below 800 degrees F
In parallel

7. 7' round duct has a ballpark cfm of what?
To remove humidity and lower dry bulb temperature
150
Positive
Compressor

8. Where do you install a trap on a drain line?
RLA/FLA x 5
40 degrees F
Staples and tape
Before the vent

9. What percentage silver do you use to braze two dissimilar metals such as steel and copper?
45-55%
TXV
40 degrees F
SEER includes the energy used in the start-up and shut-down cycles

10. What do you do after you braze a system?
100 psig
Average feet per minute X area in square feet (H' x W'/144)
Pull a vacuum
8-12 degrees F

11. The evaporator is designed to remove what two types of heat?
False
45-55%
Latent and sensible
4

12. What is used to measure static air pressure in ducts.
Outside diameter (OD)
Side-by-side and over-and-under
40 degrees F
Inclined manometer

13. 9' round duct has a ballpark cfm of what?
30 A
4
Pull a vacuum
300

14. What are the two types of return air systems in residential installations?
With 4' saddles
Individual return air systems and central return air systems
300
Duct - electrical - and mechanical

15. What is the design boiling point for most evaporator coils in residential air conditioning?
5 degrees
RLA/FLA x 5
It rises
40 degrees F

16. What kind of metering device do high-efficiency units usually use?
15% silphos
TXV
Belt drive and direct drive
6

17. What is the typical pressure differance across a TXV?
They are physically larger
Slugging
In parallel
100 psig

18. 9' round duct has a ballpark cfm of what?
300
High
It also rises
Average feet per minute X area in square feet (H' x W'/144)

19. The fan switch opens at what temperature?
Yes
105 degrees F
Staples and tape
200

20. 13 SEER is classified as what kind of efficiency?
True
In parallel
High
TXV

21. What is lined duct?
5 degrees
When the system is under pressure
18 gauge
Duct with insulation on the inside

22. What percentage silver do you need to use for an are-410 system?
1/4'
A piston type metering device
15% silphos
Compressor

23. Do you need a trap on a pull-through evaporator?
A swaging tool
A diffuser
Yes
Over/under and side by side

24. What are the three crafts normally associated with an air-conditioned installation?
Average feet per minute X area in square feet (H' x W'/144)
Positive
Duct - electrical - and mechanical
The suction line or the low-pressure side

25. What is the design boiling point for most evaporator coils in residential air conditioning?
40 degrees F
100 psig
Fiberglass
Side-by-side and over-and-under

26. Multiple-zone systems often use what to alleviate the problem of excess air when only some zones are calling for conditioning?
A bypass duct or a dump zone
Sheet metal - galvanized sheet metal - fiberglass - and flexduct
Average feet per minute X area in square feet (H' x W'/144)
30 degrees F

27. 10' round duct has a ballpark cfm of what?
Heat loss
400
8-12 degrees F
Yes

28. How many amps can 14 g wire handle?
15 A
They are larger
20 degrees F
6

29. What distributes supply air to a room in a structure?
A diffuser
Standard
A piston type metering device
Common

30. How many BTU's per ton?
8-12 degrees F
12000
140 degrees F
Rise

31. When do you install an auxillary drain pan?
To remove humidity and lower dry bulb temperature
30 degrees F
When it is above a conditioned space
It will be low

32. What are the two functions of the air-conditioning system?
They are larger
Compressor
To remove humidity and lower dry bulb temperature
20 degrees above ambient

33. What standard weight copper tubing is most often used in the heating and air-conditioning industry?
With 4' saddles
False
Infiltration and ventilation
L-type

34. What can cause a decrease in suction pressure on an air-conditioning system?
A dirty evaporator
Nominal-sized tubing
12000
Compressor

35. The crankcase heater on an air-conditioning compressor is used to what?
2 minutes
Boil the liquid refrigerant out ot the oil within the crankcase
Duct with insulation on the inside
It will be low

36. 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

37. What standard weight copper tubing is most often used in the heating and air-conditioning industry?
L-type
Infiltration and ventilation
Any amount
Static pressure - velocity pressure - and total pressure

38. How long should you leave a system off once you kill power before restarting it?
Fiberglass
Infiltration and ventilation
2 minutes
2

39. Most duct insulation is made of what?
Duct - electrical - and mechanical
In series
Standard
Fiberglass

40. Why are some ACR tubing lines insulated?
It will be high
With an are rating
In parallel
To keep refrigerant from absorbing heat and to prevent condensation from forming on the line

41. How many BTU's per ton?
Shorted winding - open winding - and grounded winding
Outside of the male fitting
Btu/hr (output) / wattage (input)
12000

42. Do you need a vent on a push-through evaporator?
Yes
100
100 psig
Below 800 degrees F

43. When must a copper joint never be soldered or brazed?
Duct with insulation on the inside
When the system is under pressure
Pull a vacuum
To lower the amount of pressure drop through the coil

44. What kind of copper tubing is used for plumbing and heating applications?
Individual return air systems and central return air systems
Nominal-sized tubing
Infiltration and ventilation
In series

45. At what temperature will soft solder melt?
Staples and tape
Below 800 degrees F
On the common terminal
Yes

46. What are normal conditions - as defined by the ARI.
95 degrees F outside - 80 degrees F inside - and 50% relative humidity
Outside diameter (OD)
Nominal-sized tubing
75 degrees F dry bulb indoor - 95 degrees F drybulb outdoor - and 50% relative humidity

47. Do you need a vent on a pull-through evaporator?
Any amount
Btu/hr (output) / wattage (input)
Blended refrigerants
Yes

48. Do you need a vent on a push-through evaporator?
Yes
2 minutes
Staples and tape
Below 800 degrees F

49. What is the difference between SEER and EER?
ACR (air-conditioning refrigeration) tubing
With an are rating
SEER includes the energy used in the start-up and shut-down cycles
TXV

50. How are round ducts connected to one another?
Any amount
With a minimum of three evenly spaced self-tapping screws
Pistons
5 degrees

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