100+ Free TX HVAC Contractor Practice Questions
Pass your Texas Air Conditioning and Refrigeration Contractor License Exam exam on the first try — instant access, no signup required.
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Key Facts: TX HVAC Contractor Exam
25 tons
Class B Limit
TDLR
70%
Passing Score
TDLR
120
Class A Qs
3-hr limit
48 mo
Experience
Within 72 mo
$300K/$600K
Class A Insurance
TDLR
$115
Application Fee
Annual
About the TX HVAC Contractor Exam
Texas ACR contractor licensing covering Class A (unlimited) and Class B (25 tons and under), TDLR regulations, trade knowledge for Texas heat, and EPA compliance.
Questions
120 scored questions
Time Limit
3 hours
Passing Score
70%
Exam Fee
$75 (A) / $60 (B) + $115 application (Texas Department of Licensing and Regulation (TDLR))
TX HVAC Contractor Exam Content Outline
State Laws & TDLR
Class A/B licensing, experience, insurance, enforcement, technician registration
Trade Knowledge
Load calculations, refrigerant handling, ductwork, diagnostics
Mechanical Codes
IMC locally adopted, energy code, venting, clearances, condensate
Safety
EPA 608, OSHA, fall protection, A2L refrigerants, lockout/tagout
Business
Contracts, advertising, warranties, utility rebates
How to Pass the TX HVAC Contractor Exam
What You Need to Know
- Passing score: 70%
- Exam length: 120 questions
- Time limit: 3 hours
- Exam fee: $75 (A) / $60 (B) + $115 application
Keys to Passing
- Complete 500+ practice questions
- Score 80%+ consistently before scheduling
- Focus on highest-weighted sections
- Use our AI tutor for tough concepts
TX HVAC Contractor Study Tips from Top Performers
Frequently Asked Questions
Difference between Class A and B?
Class A: unlimited. Class B: cooling 25 tons and under, heating 1.5M BTU/hr and under. Insurance: A=$300K/$600K, B=$100K/$200K.
Experience needed?
48 months under licensed contractor within 72 months. Or 36 months with technician cert for 12 months.
Exam details?
Class A: 120 Qs, 3 hrs. Class B: 100 Qs, 3 hrs. Both: 70% to pass.