CA C-20 — HVAC (Warm-Air Heating, Ventilating & A/C) Exam
CA · CSLB Exam
Updated 2026- Everything you need to pass your exam
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What's covered - 4 topics per exam
115 questions and answers per exam set - Exactly like your real CSLB contractor exam.
- Planning and Estimating 22%
- Fabrication, Installation, and Startup 38%
- Troubleshooting, Repair, and Maintenance 20%
- Safety 20%
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Planning and Estimating
Common Questions
Is this updated for 2026?
Yes. All questions, code references, and study materials were last given a major update for the 2026 CSLB standards.
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