EPA Practice Tests
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EPA Practice Test – Core #11 Quiz
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EPA Practice Test – Core #21 Quiz
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EPA Practice Test – Core #31 Quiz
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EPA Practice Test – Core #41 Quiz
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EPA Practice Test – Core #51 Quiz
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EPA Practice Test – Core #61 Quiz
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EPA Practice Test – Core #71 Quiz
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EPA Practice Test – Core #81 Quiz
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EPA Practice Test – Core #91 Quiz
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EPA Practice Test – Core #101 Quiz
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Question 1 of 25
1. Question
Which of the following is the R-500 refrigerant?
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Question 2 of 25
2. Question
When refrigerants are in the suction line they are in what phase and state?
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Question 3 of 25
3. Question
According to the Clean Air Act (CAA), R-22 must be:
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Question 4 of 25
4. Question
Which of the following gasses can be used to pressure test a system, and be released as part of a leak test?
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Question 5 of 25
5. Question
What is the temperature at which refrigerants begin to evaporate?
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Question 6 of 25
6. Question
What is the color of the high pressure gauge of a gauge manifold?
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Question 7 of 25
7. Question
Which of the following has the lowest molecular weight?
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Question 8 of 25
8. Question
What is the name of the amount of heat required to change the refrigeration from a liquid to a gas?
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Question 9 of 25
9. Question
The condenser rejects heat from the system.
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Question 10 of 25
10. Question
What happens to the boiling point of refrigeration liquid as the pressure of the refrigeration liquid increases?
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Question 11 of 25
11. Question
HFC’s are highly stable in lower parts of the atmosphere.
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Question 12 of 25
12. Question
Refrigerant leaks depend mostly on _______ ?
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Question 13 of 25
13. Question
A lack of which of the following may cause asphyxiation?
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Question 14 of 25
14. Question
What is the name of the chemical found in the stratosphere, which is stable, and characteristically strips a free oxygen atom and then releases the chlorine ion, which then continues the chain reaction of destroying more ozone molecules?
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Question 15 of 25
15. Question
An Ozone depletion potential of 1 is equal to which of the following refrigerants?
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Question 16 of 25
16. Question
What is the EPA’s definition for a substantial leak increase percentage for industrial process and commercial refrigeration systems?
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Question 17 of 25
17. Question
Natural refrigerants such as carbon dioxide and hydro-carbons (such as propane) have a high Global Warming Potential (GWP) compared to HFC’s.
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Question 18 of 25
18. Question
After what date will the servicing of R-22 based systems rely on recycled refrigerants?
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Question 19 of 25
19. Question
In the case of a refrigerant leak, what color will the flame turn during a halide torch leak test?
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Question 20 of 25
20. Question
In pounds per square inch, what is the pressure of the atmosphere?
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Question 21 of 25
21. Question
Natural sources such as volcano eruptions contribute to what percentage of stratospheric chlorine?
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Question 22 of 25
22. Question
The reaction of refrigerants with water is:
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Question 23 of 25
23. Question
Which of the following is an undesirable property of a refrigerant?
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Question 24 of 25
24. Question
Which phase is a refrigerant when it leaves the evaporator?
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Question 25 of 25
25. Question
One may determine that refrigerants are still trapped in a system during a vacuum leak test, if the measure pressure increases by _______.
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