Find training near me
  1. Home
  2. Test prep
  3. EPA 608 practice test
Tool · EPA 608 practice

EPA 608 practice test

Ten core-section questions with explanations.

Free practice quiz

The core section is the part of the EPA 608 exam everyone takes, no matter which type you want. These questions cover the topics it tests most. Read the explanation under each one.

In short

The EPA 608 core section covers why refrigerants harm the ozone layer, the differences between CFCs, HCFCs and HFCs, the rules against venting, recovery and recycling, cylinder handling, and safety. This free 10-question practice quiz uses the same topics and explains each answer. When you score well here, move on to the type sections for the equipment you will work on.

Sources checked October 10, 2026Pay, training and outlook come from the U.S. Bureau of Labor Statistics. Pay is the middle (median) figure nationally; your first paycheck in the trade will usually be lower.
1. Which element in CFC refrigerants damages the ozone layer?
2. R-12 is an example of a
3. R-22 is an example of a
4. R-410A is an
5. Knowingly venting refrigerant during service is
6. A refillable recovery cylinder is usually painted
7. Recovery cylinders should be filled to no more than
8. In a low-pressure system, a leak usually lets
9. A small appliance under EPA rules contains
10. Breathing high concentrations of refrigerant vapor in a closed room can cause

After the core

Type I covers small appliances, Type II high-pressure systems and Type III low-pressure systems. Read the EPA 608 certification guide for how the types work.

Starting HVAC training?

Tell us your ZIP and we will send HVAC programs, many with EPA testing included.

Find training near me

Straight answers

How many questions are on the EPA 608 exam?

Each section, including the core, is commonly 25 questions. Check your testing organization.

What is a passing score on EPA 608?

Testing organizations commonly require 70 percent on each section. Confirm with yours.

Is the EPA 608 test open book?

It depends on the type and the testing organization. Ask before test day.

Where this comes from

Keep looking

Find training near me