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Nevada
C-21 Refrigeration and Air Conditioning
| Apply for the license |
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Nevada State Contractor's Board
2310 Corporate Circle, Suite 200
Henderson, NV 89074
Phone: (702) 486-1100
9670 Gateway Dr. #100
Reno, NV 89511
Phone: (775) 688-1141
www.nscb.state.nv.us
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| Exam Administrator |
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PSI Licensure : Certification
3210 E. Tropicana
Las Vegas, NV 89121
Phone: (800) 733-9267
Candidate Information Web Page
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| Exam Type |
| OPEN BOOK |
| Exam Content |
| Subject Area |
# of Questions |
| Piping |
6 |
| Insulation |
1 |
| Hangers and Supports |
3 |
| Sound, Vibration and Seismic Control |
1 |
| Heating and Cooling Principles |
3 |
| Refrigerants and Refrigeration |
7 |
| Load Calculations |
6 |
| Testing, Adjusting and Balancing |
3 |
| Controls |
5 |
| Machine Room |
1 |
| A/C and Heat Pump Equipment |
4 |
| Furnaces and Heaters |
4 |
| Hydronics |
2 |
| Chimneys, Flues and Vents |
5 |
| Combustion Air |
2 |
| Fuel Systems |
10 |
| Ducts |
6 |
| Evaporative Cooling |
2 |
| Chillers |
3 |
| Solar |
4 |
| Ventilation and Exhausts |
3 |
| Safety |
4 |
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| Total Number of Test Questions: |
85 |
| Time Allowed (hours) |
3.0 |
| Passing score |
60 |
| In
Nevada you must also pass a Contractor Management Survey Exam
(Business and Law) unless you are already a licensed contractor who is adding a classification
to your license. |

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| Recommended (permitted) Reference Books |
| 1. |
Uniform Mechanical Code, 1997,
International Association of Plumbing and Mechanical Officials. |
| 2. |
NFPA 54: National Fuel Gas Code,
1999, National Fire Protection Association. |
| 3. |
NFPA 85: Boiler and Combustion Systems Hazard Code,
2004, National Fire Protection Association. |
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Reference Books NOT Permitted in the Exam
(used to write questions) |
| 1. |
Code of Federal Regulations - 29 CFR Part 1926 (OSHA), Revised
as of 2004 or Later - OR - (OSHA) Excerpts as of 2003 by PSI. |
 |
| 2. |
Modern Refrigeration and Air Conditioning,
2000, Althous, Turnquist, Bowditch, Bracciana. |
| 3. |
HVAC Duct Construction Standards - Metal and
Flexible, 3rd Edition, 2005, Sheet Metal and Air Conditioning Contractors'
National Association. |
| 4. |
Manual N, 4th Edition,
1988, Air Conditioning Contractors of America. |
| 5. |
Solar Water and Pool Heating Manual Design and Installation
& Repair and Maintenance, 2006, Florida Solar Energy Center.
|
 |
| 6. |
Evaporative Air Conditioning Handbook, 3rd
Edition, 1997, John R. Watt, Will K. Brown. |
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Recommended Study Materials
Nevada • C-21 Refrigeration and Air Conditioning |
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