Trade certification · HVAC
EPA Section 608 — Type III
Certification for low-pressure appliances — mainly centrifugal chillers in commercial buildings.
Questions last checked against the official sources on October 5, 2026.
The real exam at a glance
- Questions
- 25 per section
- To pass
- 18 of 25
- Covers
- Low-pressure appliances (chillers)
- Also needed
- Core section
What you'll practise
Try a question
What does a purge unit that runs often or for long periods indicate?
- Too much oil
- A perfectly tight system that is running at full capacity
- A leak that is letting air into the system
- A low water flow
Show the answer
C. A leak that is letting air into the system — Frequent purging means air is entering; find and fix the leak.
Sample questions by topic (in English)
- Definitions
- Leak detection
- Recovery techniques and requirements
- Charging and service
- Leak repair requirements
- Safety
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Questions about the EPA 608 Type III
Is this the official EPA 608 Type III?
No. Semplr is independent and not affiliated with the exam body. We write every question ourselves, in the official format and at the official level.
What is the real EPA 608 Type III like?
Questions: 25 per section. To pass: 18 of 25. Covers: Low-pressure appliances (chillers). Also needed: Core section.
How is my practice marked?
Instantly. You see your score against the pass mark, and an explanation for every question — including the ones you got right.
Can I take it on my phone?
Yes. The whole mock exam works on a phone, and your progress is saved in your browser.
Ready for a full run?
One sitting, real timing, then your score against the pass mark.
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