Licensing Exams by Trade Name

Nevada
(C-21B) Air Conditioning Contractor

Apply for the License
Nevada State Contractor‘s Board
2310 Corporate Circle, Suite 200
Henderson, NV  89074
Phone: (702) 486-1100
Exam Provider
PSI Clark County Office
450 N Stephanie St.
Henderson, NV  89014
Phone:  (855) 205-5827
Exam Type
OPEN  BOOK
Exam Content
Subject Areas# of
Questions
Piping4
Insulation1
Hangers & Supports3
Sound, Vibration & Seismic Control1
Heating & Cooling Principles3
Refrigerants & Refrigeration4
Load Calculations6
Testing, Adjusting & Balancing1
Controls3
A/C & Heat Pump Equipment4
Furnaces & Heaters 4
Chimneys, Flues & Vents3
Combustion Air2
Fuel Systems8
Ducts6
Evaporative Cooling3
Safety4
Total number of test questions:
60
Time allowed (hours):
2.0
Scope of Work

Installation, repair, service and maintenance of equipment, devices, machinery, units and related ductwork which use evaporation, refrigeration, boilers or combustion for the control of air temperatures in structures, including, without limitation, any humidity and thermostatic controls in connection with any such equipment, devices, machinery, units or ductwork.

This exam may also include questions on the following subjects:

  • Reading and interpreting construction codes and regulations
  • Nevada Health Department regulations
  • Appropriate building codes
  • Trade materials, tools, equipment and methods
  • Nevada Occupational Safety and Health Rules

In addition to the trade-specific examination, you are required to pass the Contractor Management Survey Exam offered by PSI.

Books Allowed in the Exam
1.
Uniform Mechanical Code, 2018, IAPMO
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2.
NFPA 54: National Fuel Gas Code, 2012, NFPA
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Books NOT Allowed in the Exam
1.
Modern Refrigeration and Air Conditioning, 19th or 20th Edition, Althous, Turnquist, Bowditch, Bracciano
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2.
CFR Title 29, Part 1926 Selections (OSHA), 2013, PSI
Buy from PSI
3.
HVAC Duct Construction Standards - Metal and Flexible, 3rd Edition, 2005, SMACNA
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4.
Manual N: Load Calculation for Commercial Summer & Winter Air Conditioning, 5th  Edition, 2012, ACCA
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5.
Evaporative Air Conditioning Handbook, 3rd Edition, 1997, John R. Watt, Will K. Brown
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Available Study Materials
This study guide only covers the OSHA portion of the PSI exam.
PSI OSHA Selections, 2013
Study Guide
$49.95
We advise that you NOT purchase the PSI published book shown in the exam bulletin.  We recommend a better, up-to-date allternative on our Study Guides purchase page linked below.

The button below will take you to the details about our 800 question Study Guides and provide you with a FREE "Reference Navigator" document that allows you to more accutately decide which sections of the federal code applies to your exam.  PSI does not provide this information.
Go to OSHA Guide buy page
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