SkillCat EPA 608 Certification Exam (Latest Update 2025 / 2026) | Questions and Verified Answers | Grade A | 100% Correct
Question:
Hygroscopic oils
Answer:
Absorb moisture readily
Question:
If we are retrofitting a system to use r134a which oil do you need to use
Answer:
Polyester POE
Question:
True or false R1234yf is not miscible in any refrigerant oils
Answer:
False 1 / 4
Question:
True or false Alkylbenzene (AB oil) is miscible in HCFC refrigerant
Answer:
True
Question:
True or false An ideal oil is best at handling high temperatures and high pressures
Answer:
False
Question:
True or false an Ideal oil is readily miscible with the refrigerant in the system
Answer:
True
Question:
True or false As long as an oil is not flammable at the starting and ending temperature it can be used because the system is contained
Answer:
False
- / 4
Question:
True or false Hydrolysis is when refrigerant oil breaks in the presence of water
Answer:
True
Question:
True or false Polyester oils are great because they can mix with a lot of other oils
Answer:
False
Question:
What are the most common ways leaks can occur
Answer:
Wear and tear, poor initial construction
Question:
Common leak locations are
Answer:
Coils, valve connections, pipe connections
- / 4
Question:
What information needs to be on the label of a container sent for reclamation
Answer:
Refrigerant type
Question:
What position must you ship cylinders of refrigerant
Answer:
Upright
Question:
When shipping refrigerant that has been used you should
Answer:
Attach dot classification tags, use recovery cylinders, properly label contents
Question:
When shipping refrigerants in hazard class 2.2 what information needs to be on the shipping paper
Answer:
Number of cylinders of each gas
- / 4