Commercial Refrigeration - Class A
Apply for the License
State of Texas
Department of Licensing & Regulation (TDLR)
920 Colorado St
Austin, TX 78701
Phone: (512) 463-6599
Exam Provider
PSI Services LLC
3210 E. Tropicana
Las Vegas, NV 89121
Phone: (833) 333-4741
Exam Type
OPEN BOOK
Exam Content
Please consult the PSI exam bulletin from the button below for more detailed information about subject sub-topics.
| Subject Areas | Sub-topics | # of
Questions |
|---|
| Air Distribution | 6 | 6 |
| Basic Refrigeration Components | 5 | 10 |
| Combustion Air | — | 3 |
| Controls | 3 | 14 |
| Equipment Requirements | 4 | 12 |
| HVACR Systems & Design | 3 | 20 |
| Piping | 6 | 11 |
| Refrigeration Principles | 3 | 10 |
| Safety | — | 7 |
| Service | 5 | 11 |
| Testing | 4 | 6 |
| Texas Laws & Rules | — | 6 |
| Ventilation | 2 | 2 |
| Venting | 2 | 2 |
Total number of test questions:
120
Time allowed (minutes):
230
Books Allowed in the Exam
1.
Uniform Mechanical Code, 2018, IAPMO
2.
International Mechanical Code, 2018, ICC
3.
International Fuel Gas Code, 2018, ICC
4.
Modern Refrigeration and Air Conditioning (textbook), 21st Edition, Althouse, Turnquist, Bowditch & Bracciano
5.
ADI Duct Size Calculator, Air Distribution Institute
6.
Code of Federal Regulations, 29 CFR Part 1926 (OSHA) & 1903, 1904, 1910, MANCOMM
7.
Texas Occupation Code Chapter 1302 - Air Conditioning & Refrigeration Contractors License Law
8.
Texas Administrative Code Chapter 75 - Air Conditioning & Refrigeration Contractors License Rules
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