100+ Free TX HVAC Contractor Practice Questions

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Which Texas state agency regulates air conditioning and refrigeration contractors?

Texas Commission on Environmental Quality

Texas Department of Licensing and Regulation (TDLR)

Texas Workforce Commission

Texas Railroad Commission

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2026 Statistics

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

Sample TX HVAC Contractor Practice Questions

Try these sample questions to test your TX HVAC Contractor exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Which Texas state agency regulates air conditioning and refrigeration contractors?

A.Texas Commission on Environmental Quality

B.Texas Department of Licensing and Regulation (TDLR)

C.Texas Workforce Commission

D.Texas Railroad Commission

Explanation: TDLR oversees the ACR Contractor program.

2What are the two classes of Texas ACR contractor licenses?

A.Residential and Commercial

B.Class A (unlimited) and Class B (capacity-restricted)

C.Master and Journeyman

D.Level 1 and Level 2

Explanation: Class A is unlimited; Class B restricts to cooling 25 tons and under, heating 1.5M BTU/hr and under.

3What is the capacity limitation for a Texas Class B license?

A.No limitations

B.Cooling 25 tons and under; heating 1.5 million BTU/hr and under

C.Cooling 10 tons and under

D.Residential only

Explanation: Class B: cooling 25 tons and under, heating 1.5M BTU/hr and under.

4How many months of experience does Texas require for an ACR contractor license?

A.24 months

B.36 months

C.48 months within the preceding 72 months

D.60 months

Explanation: 48 months under a licensed contractor within 72 months.

5What alternative experience pathway exists for the Texas ACR license?

A.None

B.36 months experience plus technician cert for 12 months

C.Degree waives all

D.Online course substitutes

Explanation: 36 months plus TDLR technician cert for preceding 12 months.

6How many questions on the Texas Class A exam?

A.80

B.100

C.120

D.150

Explanation: 120 questions, 3 hours, 70% to pass.

7What is the passing score for Texas ACR exams?

A.60%

B.65%

C.70%

D.75%

Explanation: 70% for both Class A and B.

8What is the Class A exam fee?

A.$50

B.$60

C.$75

D.$100

Explanation: $75 for Class A, $60 for Class B, plus $115 application.

9What is the license application fee?

A.$50

B.$75

C.$100

D.$115

Explanation: $115 application fee, license valid 1 year.

10What insurance does Class A require?

A.$100K/$200K

B.$200K/$400K

C.$300K/$600K

D.$500K/$1M

Explanation: $300K per occurrence, $600K aggregate.

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

25%

State Laws & TDLR

Class A/B licensing, experience, insurance, enforcement, technician registration

30%

Trade Knowledge

Load calculations, refrigerant handling, ductwork, diagnostics

20%

Mechanical Codes

IMC locally adopted, energy code, venting, clearances, condensate

15%

Safety

EPA 608, OSHA, fall protection, A2L refrigerants, lockout/tagout

10%

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

1Know Class A vs B distinctions

2Study Texas climate challenges

3Master EPA 608 and A2L handling

4Review TDLR rules

5Understand Manual J with TX temps

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.