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
Up to how many ozone molecules may be destroyed by exposure to one chlorine atom in the stratosphere?
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Question 2 of 25
2. Question
What is the expected lifespan range of a CFC molecule?
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Question 3 of 25
3. Question
The __________ connects the evaporator coil to the compressor in a refrigerant system.
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Question 4 of 25
4. Question
Which refrigerant has the highest ozone depletion potential (ODP)?
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Question 5 of 25
5. Question
If there is a leak, a vacuum test allows air and moisture to enter the system?
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Question 6 of 25
6. Question
In what state can refrigerant be transferred or sold to another individual?
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Question 7 of 25
7. Question
What is formed by the reaction between nitrogen and hydrogen?
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Question 8 of 25
8. Question
Under what EPA section or motor vehicle air-conditioning (MVAC) service technicians are covered?
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Question 9 of 25
9. Question
In a low pressure refrigerated appliance which of the following refrigerants is to be used?
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Question 10 of 25
10. Question
A fine of up to ______ per day per violation can be a minister to violators of the clean air act, which includes improper record keeping.
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Question 11 of 25
11. Question
By what year was the use of halons completely phased out?
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Question 12 of 25
12. Question
What is indicated when during each vacuum decay test the pressure of the system increases to greater than 0 psig but stops at some point after creating the vacuum?
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Question 13 of 25
13. Question
Corrosion in refrigerant appliances results from a pH level that is ______.
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Question 14 of 25
14. Question
Which gas is used to pressurize (for leak checking) or blow debris out of the system, after recovering the refrigerant from a sealed system?
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Question 15 of 25
15. Question
Recovery rate will be _______ if your recovery unit does not have a subcooling feature.
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Question 16 of 25
16. Question
Refrigerated appliances are divided by EPA into how many groups?
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Question 17 of 25
17. Question
A recovery cylinder can store up to how many refrigerants?
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Question 18 of 25
18. Question
Which of the following methods is the least effective at detecting the general area of a small leak?
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Question 19 of 25
19. Question
A vacuum test can test a leak.
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Question 20 of 25
20. Question
The refrigerant changes from high-pressure vapor to high-pressure liquid during…
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Question 21 of 25
21. Question
To which of the following refrigerant groups does R-134a belong?
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Question 22 of 25
22. Question
The refrigerant can be reclaimed if it meets the _____ purity standard.
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Question 23 of 25
23. Question
The thermostatic expansion valve (TXV) maintains the appropriate pressure difference between _______ and _______ of the system.
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Question 24 of 25
24. Question
What colors is a refrigerant tank that is used for recovery painted?
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Question 25 of 25
25. Question
The refrigerant recovery cylinder must not exceed what percentage of its capacity?
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