Question 1: ,............. is responsible for setting the schedule of phase out of CFC/HCFC production.
- Clean Air Act
- Pollution protection act
- Toxic substances control act
- Montear protocol
EPA 608
NEC 2023
EPA 608 Core Exam Practice Test 5
Free Online EPA 608 Certification Practice Test (Core Exam)-5
How this test works
Read each question carefully
Look for absolute words like always / never — they often distinguish the right answer.
Manage your time
You have 21 min for 12 questions. Skip tough ones and come back.
Progress is auto-saved
Your answers are saved locally — a page refresh won't lose your work.
Review your answers
After submitting you'll see every explanation and your NEC references.
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.
12
Questions
21 min
Time
70%
Pass
Timer starts immediately. Progress is auto-saved.
Student Reviews 4.0 / 5 · 2 reviews
G
Greg L.
Good variety of questions on refrigerant recovery and handling. A couple of the answers I got wrong I disagreed with but looked them up and the site was right, so lesson learned I guess. Overall solid for exam prep.
G
Greg L.
Good variety of questions on refrigerant recovery and handling. A couple of the answers I got wrong I disagreed with but looked them up and the site was right, so lesson learned I guess. Overall solid for exam prep.
0
Correct0
Wrong0s
TimeStudent Reviews
Leave a Review
EPA 608 Core Exam Practice Test 5 — Question List
Question 2: For other than Individual and commercial refrigeration systems the substantial leak is a leakage of ................ Percent loss of charge per year.
- 15
- 35
- 30
- 20
Question 3: The composite refrigerant can be recovered.
- True
- False
Question 4: A Refrigerant which does not contain chlorine ..............
- HCFC
- CFC
- HFC
Question 5: If the pressure of the liquid decreases the boiling point of a liquid .......................
- decreases
- increases
- Remains same
Question 6: The technician should ensure that the refrigerant recovery cylinder must not fill more than ..................... percentage of its capacity.
- 90
- 80
- 70
- 60
Question 7: Which of the following component draws heat in to the refrigerant in refrigeration system?
- Compressor
- Condenser
- Evaporator
- Expansion valve
Question 8: If the saturation temperature of the refrigerant decreases …………….
- The pressure of refrigerant decreases
- The refrigerant evaporates faster
- The refrigerant freezes faster
Question 9: The sale of CFC and HFC refrigerants were restricted to certified technicians as of ..................
- November 14,1994
- November 15,1995
- December 31,1995
- June 1, 1992
Question 10: Which of the following refrigerant contains CFC?
- R-11
- R-22
- R-123
- R-134
Question 11: The refrigerant leaving condenser is ..........................
- high pressure liquid
- Low pressure liquid
- High pressure vapor
- Low pressure vapor
Question 12: If the pressure gauge reads 25.3 psig what is its related absolute pressure?
- 40 psia
- 25.3 psia
- 10.6 psia
- 28.3 psia
NEC Reference: NEC 25.3
Good variety of questions on refrigerant recovery and handling. A couple of the answers I got wrong I disagreed with but looked them up and the site was right, so lesson learned I guess. Overall solid for exam prep.
Good variety of questions on refrigerant recovery and handling. A couple of the answers I got wrong I disagreed with but looked them up and the site was right, so lesson learned I guess. Overall solid for exam prep.