EPA 608 Practice Test Type 2

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This EPA 608 practice test for Type 2 certification covers the skills and knowledge needed to work on high-pressure appliances. There are 40 questions, all required, covering recovery procedures, leak detection, and other EPA safety practices. This section is great for technicians preparing to service high-pressure refrigerant systems.

40 Questions

1. Before starting recovery on a system with an operating compressor, what step should be taken to reduce recovery time?

 
 
 
 

2. Before opening a system for a major repair, what must a technician do first?

 
 
 
 

3. What is the required evacuation level for a high-pressure appliance when using recovery equipment manufactured after November 15, 1993?

 
 
 
 

4. After evacuating a system, how can a technician confirm it does not leak before charging?

 
 
 
 

5. Which of the following best describes a high-pressure appliance?

 
 
 
 

6. Which statement best describes recovery requirements for high-pressure appliances?

 
 
 
 

7. When repairing a leaking coil in a high-pressure appliance, what must be done if the system holds more than 50 pounds of refrigerant?

 
 
 
 

8. When is it acceptable to charge liquid refrigerant into the low side of a high-pressure system?

 
 
 
 

9. Which of the following actions must be taken after a successful leak repair on a large appliance?

 
 
 
 

10. Which refrigerant below is typically found in high-pressure systems?

 
 
 
 

11. What documentation must a technician maintain when servicing a leaking system with over 50 lbs of refrigerant?

 
 
 
 

12. When recovering refrigerant from a system with a non-operating compressor, which method improves vapor recovery?

 
 
 
 

13. Why must technicians recover refrigerant to the EPA-specified vacuum level before opening a high-pressure appliance?

 
 
 
 

14. technician replaces a condenser on a high-pressure appliance. What must happen before recharging the system?

 
 
 
 

15. Who is responsible for ensuring refrigerant has been properly removed from a system before disposal?

 
 
 
 

16. Which system would most likely use a high-pressure refrigerant?

 
 
 
 

17. According to EPA regulations, which of the following qualifies as a “major repair”?

 
 
 
 

18. Under EPA regulations, what is the leak repair threshold for comfort cooling appliances containing over 50 pounds of refrigerant?

 
 
 
 

19. When is it acceptable to use a system-dependent recovery device on high-pressure appliances?

 
 
 
 

20. Which condition must be met before using a system-dependent recovery unit on a high-pressure appliance?

 
 
 
 

21. Which of the following situations requires the use of self-contained (active) recovery equipment?

 
 
 
 

22. Which type of recovery device pulls refrigerant directly out of the appliance and stores it without relying on the system’s compressor?

 
 
 
 

23. What is the typical saturation pressure of R-22 at 75°F?

 
 
 
 

24. If leak repair is not feasible, what must the owner/operator submit to the EPA?

 
 
 
 

25. When a system exceeds the applicable leak rate, how soon must the initial repair be completed?

 
 
 
 

26. What is the preferred method for charging a system with a large quantity of refrigerant?

 
 
 
 

27. Before charging a system with refrigerant, what is the minimum vacuum level required to ensure moisture and air are removed?

 
 
 
 

28. Which of the following is classified as a high-pressure appliance under EPA regulations?

 
 
 
 

29. A technician working on a 10 lb high-pressure appliance without a functioning compressor may use which recovery method?

 
 
 
 

30. Recovery equipment manufactured before November 15, 1993 must achieve what evacuation level for a high-pressure appliance with a full charge of 200 pounds or more?

 
 
 
 

31. Which of the following affects the efficiency of refrigerant recovery from a high-pressure system?

 
 
 
 

32. Which test must be performed after a major repair on a high-pressure system?

 
 
 
 

33. Which charging method is least likely to introduce non-condensables into a system?

 
 
 
 

34. Technicians using recovery equipment must ensure it is:

 
 
 
 

35. What is the required recovery vacuum level for a high-pressure system with a normal charge greater than 200 pounds, using recovery equipment manufactured after November 15, 1993?

 
 
 
 

36. Why are self-contained recovery units required for large commercial systems?

 
 
 
 

37. What is the minimum required vacuum level when using recovery equipment manufactured before November 15, 1993 on high-pressure appliances?

 
 
 
 

38. What happens if a technician fails to pull the EPA-required vacuum level during recovery on a high-pressure unit?

 
 
 
 

39. For commercial refrigeration systems with over 50 lbs of refrigerant, what is the EPA leak rate threshold?

 
 
 
 

40. Before disposing of a high-pressure appliance, what must a certified technician do?

 
 
 
 


The 40 questions in this Type 2 section focus on reinforcing your knowledge of high-pressure systems and EPA safety practices. This section is useful whether you’re reviewing to strengthen your understanding or just starting out and want to test your grasp of the material. This practice test is a helpful tool to prepare you for the certification exam with greater confidence. When you’re ready, move on to the Type 3 practice test to get a focused look at low-pressure appliances.

Next: EPA 608 Type 3 Practice Test
Mark A. Fletcher
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