EPA 608 universal Questions With correct
Answers and rationales |Graded A+|Assured
Pass
THIS EXAM INCLUDES:
➢EPA 608 universal
➢ Questions With correct Answers
➢ Rationales
➢ Rationales Included
➢ Graded A+
➢ New 2026
, EPA 608 universal Exam
1. Refrigeration technicians who violate the Clean Air Act can:
• A) Lose their EPA certification only
• B) Be fined only
• C) Be required to appear in Federal court only
• D) Lose their EPA certification, be fined, be required to appear in Federal
court
Rationale: Violations can result in multiple penalties including loss of certification,
fines, and court appearances.
2. After 1995, any supplies of CFC refrigerants to service existing units in the
USA can only come from:
• A) New manufacturing
• B) Import from other countries
• C) Recovery and recycling
• D) Stockpiles before 1995
Rationale: CFC production stopped in 1995; only recovered/recycled CFCs are
legal.
3. Refrigerant that is recovered can be returned to:
• A) The same system only
• B) Other systems owned by a different person only
• C) The same system or other systems owned by the same person without
restriction
• D) Any system regardless of ownership
Rationale: EPA allows recovered refrigerant to be returned to same or same-
owner systems.
4. Refrigerant cannot be called "reclaimed" unless it:
, • A) Has been filtered and dried
• B) Has been recovered and recycled
• C) Has been chemically analyzed and meets the ARI-700 standard
• D) Has been stored for at least 30 days
Rationale: Reclaiming requires chemical analysis to meet ARI-700 purity standard.
5. The EPA can require a technician to demonstrate their ability to perform
proper procedures for recovering and/or recycling refrigerant. Failure to
demonstrate competency can result in:
• A) A fine only
• B) Required retraining
• C) Revocation of the technician's certification
• D) Community service
Rationale: EPA can revoke certification if technician cannot demonstrate proper
procedures.
6. What characteristic(s) of CFCs make them more likely to reach the
stratosphere than most other compounds containing chlorine?
• A) They are heavier than air
• B) They dissolve easily in rainwater
• C) They are so stable that they do not break down in the lower
atmosphere
• D) They are magnetic
Rationale: CFCs lack hydrogen, making them very stable and able to reach the
stratosphere intact.
7. A system is considered dehydrated when:
• A) No visible moisture remains
• B) The system has been open for 24 hours
, • C) The vacuum indicator shows you have reached and held the required
finished vacuum
• D) The compressor runs smoothly
Rationale: Dehydration is confirmed by achieving and holding the target vacuum
level.
8. Disposable refrigerant containers are used for:
• A) Recovered refrigerant
• B) Recycled refrigerant
• C) Virgin refrigerant
• D) Reclaimed refrigerant
Rationale: Disposable cylinders are for virgin refrigerant only, never for recovered
refrigerant.
9. Which refrigerant is an HCFC?
• A) R-134a
• B) R-123, R-124, R-22
• C) R-410A
• D) R-500
Rationale: HCFCs contain hydrogen, chlorine, fluorine, carbon. R-22, R-123, R-124
are common HCFCs.
10. What statement is true about an azeotropic refrigerant mixture?
• A) It leaks in uneven amounts
• B) It acts like a single-component refrigerant over its entire range
• C) It has a temperature glide
• D) It cannot be recycled
Rationale: Azeotropic mixtures behave as a single refrigerant with constant
boiling point.
Answers and rationales |Graded A+|Assured
Pass
THIS EXAM INCLUDES:
➢EPA 608 universal
➢ Questions With correct Answers
➢ Rationales
➢ Rationales Included
➢ Graded A+
➢ New 2026
, EPA 608 universal Exam
1. Refrigeration technicians who violate the Clean Air Act can:
• A) Lose their EPA certification only
• B) Be fined only
• C) Be required to appear in Federal court only
• D) Lose their EPA certification, be fined, be required to appear in Federal
court
Rationale: Violations can result in multiple penalties including loss of certification,
fines, and court appearances.
2. After 1995, any supplies of CFC refrigerants to service existing units in the
USA can only come from:
• A) New manufacturing
• B) Import from other countries
• C) Recovery and recycling
• D) Stockpiles before 1995
Rationale: CFC production stopped in 1995; only recovered/recycled CFCs are
legal.
3. Refrigerant that is recovered can be returned to:
• A) The same system only
• B) Other systems owned by a different person only
• C) The same system or other systems owned by the same person without
restriction
• D) Any system regardless of ownership
Rationale: EPA allows recovered refrigerant to be returned to same or same-
owner systems.
4. Refrigerant cannot be called "reclaimed" unless it:
, • A) Has been filtered and dried
• B) Has been recovered and recycled
• C) Has been chemically analyzed and meets the ARI-700 standard
• D) Has been stored for at least 30 days
Rationale: Reclaiming requires chemical analysis to meet ARI-700 purity standard.
5. The EPA can require a technician to demonstrate their ability to perform
proper procedures for recovering and/or recycling refrigerant. Failure to
demonstrate competency can result in:
• A) A fine only
• B) Required retraining
• C) Revocation of the technician's certification
• D) Community service
Rationale: EPA can revoke certification if technician cannot demonstrate proper
procedures.
6. What characteristic(s) of CFCs make them more likely to reach the
stratosphere than most other compounds containing chlorine?
• A) They are heavier than air
• B) They dissolve easily in rainwater
• C) They are so stable that they do not break down in the lower
atmosphere
• D) They are magnetic
Rationale: CFCs lack hydrogen, making them very stable and able to reach the
stratosphere intact.
7. A system is considered dehydrated when:
• A) No visible moisture remains
• B) The system has been open for 24 hours
, • C) The vacuum indicator shows you have reached and held the required
finished vacuum
• D) The compressor runs smoothly
Rationale: Dehydration is confirmed by achieving and holding the target vacuum
level.
8. Disposable refrigerant containers are used for:
• A) Recovered refrigerant
• B) Recycled refrigerant
• C) Virgin refrigerant
• D) Reclaimed refrigerant
Rationale: Disposable cylinders are for virgin refrigerant only, never for recovered
refrigerant.
9. Which refrigerant is an HCFC?
• A) R-134a
• B) R-123, R-124, R-22
• C) R-410A
• D) R-500
Rationale: HCFCs contain hydrogen, chlorine, fluorine, carbon. R-22, R-123, R-124
are common HCFCs.
10. What statement is true about an azeotropic refrigerant mixture?
• A) It leaks in uneven amounts
• B) It acts like a single-component refrigerant over its entire range
• C) It has a temperature glide
• D) It cannot be recycled
Rationale: Azeotropic mixtures behave as a single refrigerant with constant
boiling point.
