Question 1: As per EPA guidelines a major repair means, maintenance or service of which of the following component?
- Evaporator
- Filter drier
- Expansion line
EPA 608
NEC 2023
EPA 608 Type 3 Exam Practice Test 4
Take a Free Practice Test-4 EPA Certification Type 3
TOPICS COVERED
epa 608 practice tests
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 15 min for 10 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.
10
Questions
15 min
Time
70%
Pass
Timer starts immediately. Progress is auto-saved.
0
Correct0
Wrong0s
TimeEPA 608 Type 3 Exam Practice Test 4 — Question List
Question 2: Which of the following recovery method does not pull the oil from the system during evacuation?
- Vapor recovery
- Liquid recovery
Question 3: If a large vacuum pump is used during evacuation …………….
- It may cause freezing of trapped water
- The evacuation process will speed up
- The refrigerant may get freeze in the evacuation hoses
Question 4: If non condensables present in the operating refrigeration system ………………………….
- The refrigerant leak rate will increase
- The discharge pressure increases
- The moisture present in the system freezes
- Spoils condenser coil
Question 5: Which of the following is the best leak checking method in operating low pressure refrigeration system?
- Hot water
- Pressurizing with Nitrogen gas
- Pressurizing with oxygen
- Hydro-static tube unit.
Question 6: Heating a refrigerant bottle will speed of ………………………….
- Vapor charging
- Liquid charging
Question 7: Water must be circulated through chillers during evacuating a system to avoid ……………
- Refrigerant Freezing
- Refrigerant leaking
- Water tube damage
Question 8: In low pressure refrigeration system, which of the following is the good indicator of leak?
- High head pressure
- Moisture present in the system
- Low pressure than atmosphere
- compressor motor slowing down
Question 9: What happens to the system when moisture presents in an operating system?
- Acid will form
- Moisture will freeze
- Prevents evacuation
- Refrigerant leakage will happen
Question 10: If a system has a large leak enough to prevent evacuation must be brought to …………………. Before being opened.
- Atmospheric pressure
- 10 psig
- Below atmospheric pressure
- Below 15 psig.
Student Reviews
No reviews yet — be the first to share your experience!
Leave a Review