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
Most refrigerant oils will mix with R-134a?
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Question 2 of 25
2. Question
Which device is used to pinpoint leaks in the refrigeration system?
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Question 3 of 25
3. Question
What is the name of the process which transforms refrigerants to a level equal to new (virgin) product specifications as determined by chemical analysis?
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Question 4 of 25
4. Question
On which of the following arrangements must relief valves be installed?
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Question 5 of 25
5. Question
Every _____ years, refillable cylinders must be hydrostatically tested and date-stamped.
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Question 6 of 25
6. Question
Up to how many ozone molecules can a single chlorine atom destroy?
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Question 7 of 25
7. Question
Before it can be resold, a reclaimed refrigerant must meet what standards?
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Question 8 of 25
8. Question
During Evacuation, a heated refrigeration system will result in a ____ dehydration time.
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Question 9 of 25
9. Question
A recovery cylinder can fit and recover a maximum of three types of refrigerants?
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Question 10 of 25
10. Question
What happens to the speed of the recovery when the ambient temperature is lower?
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Question 11 of 25
11. Question
Hygroscopic oil has a high affinity for water.
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Question 12 of 25
12. Question
The rise in the amount of what substance matches the rise in the amount of chlorine measured in the stratosphere over the past two decades?
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Question 13 of 25
13. Question
The temperature of the earth is stably maintained in part by the ozone.
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Question 14 of 25
14. Question
What quality of ozone depletion potential belongs to R-134a?
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Question 15 of 25
15. Question
When was the Montreal Protocol instated?
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Question 16 of 25
16. Question
What are the potential consequences of service technicians who violate Clean Air Act provisions?
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Question 17 of 25
17. Question
Class 1 Refrigerants will have an ozone depletion potential greater than
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Question 18 of 25
18. Question
Recovery cylinders do not have a specific design.
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Question 19 of 25
19. Question
During the recovery process, what is indicated to be burned out in case of the detection of a strong odor?
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Question 20 of 25
20. Question
In which region or area is stratospheric ozone depletion a serious problem?
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Question 21 of 25
21. Question
The condenser rejects heat from the system and changes high pressure, high temperature refrigerant vapor to low pressure, low temperature refrigerant vapor?
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Question 22 of 25
22. Question
The lowest ozone depletion potential belongs to which of the following classes?
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Question 23 of 25
23. Question
When chlorine atoms react with ozone molecules, which of the following compounds is obtained?
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Question 24 of 25
24. Question
Cleaning refrigerants for immediate use by removing oil, moisture, and acidity from the refrigerant by using filter driers has to do with which of the following processes.
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Question 25 of 25
25. Question
Ozone at ground level is considered to be undesirable and a pollutant.
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