Question 1: The recovery container should be …………….. during a refrigerant recovery?
- Cooled
- Sub cooled
- Heated
- Cleaned
EPA 608
NEC 2023
EPA 608 Type 2 Exam Practice Test 5
Free Online EPA 608 Type 2 exam practice test -5
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Frequently Asked Questions
Yes — completely free with no account needed.
The EPA 608 certification is required by law for any technician who purchases or handles refrigerants. It covers safe handling, leak detection, recovery, and environmental regulations.
Type I covers small appliances (≤5 lbs refrigerant), Type II covers high-pressure systems, Type III covers low-pressure systems, and Universal covers all three. Most HVAC technicians pursue Universal certification.
You must score at least 70% on each section of the exam. The Universal exam has four parts: core, Type I, Type II, and Type III.
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TimeEPA 608 Type 2 Exam Practice Test 5 — Question List
Question 2: For recovery of large refrigerant systems which of the following machines should be used?
- Water cooled refrigerant machines
- Nitrogen cooled refrigerant machines
- Recover machine with large vacuum pump
- Recovery machine with pressure regulator
Question 3: Recovered refrigerant from a system contains acids, oils and ……………
- Vapour
- Water
- Moisture
- Nitrogen
Question 4: As per EPA rules all houses of recovery machines should be sealed to reduce the leakage of ………………. When connecting or disconnecting the recovery machine?
- Refrigerant
- Nitrogen
- Oil
- Moisture
Question 5: What part is most likely to leak in a refrigeration system with open compressor is not used for several months?
- The suction service valve
- The rotating shaft seal
- The oil drain plug
- The discharge service valve
Question 6: What is the R-12 refrigeration unit pressure at room temperature which is idle?
- 74 psig
- 124 psig
- 184 psig
- 210 psig
Question 7: A refrigerant system is dehydrated to …………………..
- Remove the oil and vapour
- Remove the water and moisture
- Remove the nitrogen trapped in system
- Remove the refrigerant
Question 8: In which of the following condition the reciprocating compressor should not be energized?
- When the discharge service valve is close
- When the discharge service valve is open
- When the suction service valve is open
- When the suction pressure is high.
Question 9: Which of the following is an indicator of possible leak in high pressure refrigeration system?
- High head pressure
- Low water pressure
- Excessive super heat
- Frequent purging
Question 10: If large vacuum pump is used for evacuating a refrigeration system………….
- It causes the trapped oil to freeze
- It causes the trapped refrigerant to freeze
- It causes the trapped water to freeze
- It causes the components to freeze
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