EPA 608 Type II · Leak Detection · Easy
What is the approved method to pinpoint a refrigerant leak after an electronic detector finds the general area?
Answer: C. Applying soap bubbles to the suspected area.
- APulling a deep vacuum to 500 microns.
- BPressurizing the system with compressed oxygen.
- CApplying soap bubbles to the suspected area.✓ Correct
- DUsing a halide torch on HFC refrigerants.
Why C is right
Soap bubbles are the standard, safe, and approved method to pinpoint the exact location of a leak once the general area has been identified.
More Type II questions
- Where is a leak most likely to occur in a belt-driven open compressor?
- What gas is strictly used with a trace amount of refrigerant to leak test a system?
- Can you pipe two pressure relief valves in series?
- What prevents refrigerant from migrating to the compressor oil during the off-cycle?
- Why must you never start a hermetic compressor while it is in a deep vacuum?
Go deeper with the study guide AIM Act 2026: The HFC Leak Repair Rules for HVAC Techs, try the free 10-question test or browse all EPA 608 practice questions.
A practice question written for study, checked against 40 CFR Part 82, Subpart F. It is not an official EPA exam question, and this site is not affiliated with the U.S. EPA.