Construction Trade Exam Research Area

Mechanical Contractor

Apply for the License

Mississippi Contractor Licensing Board
PO Box 320279
2679 Crane Ridge Drive, Suite C
Jackson, MS  39216
Phone:  (601) 354-6161
Licensing Web Page

Exam Administrator

PSI Licensure : Certification
3210 E. Tropicana
Las Vegas, NV 89121
Phone: (800) 733-9267
Candidate Information Web Page

Exam Type


Exam Content

Subject Areas # of
Boilers and Hydronics 6
Gas Systems 10
Cleanouts 3
Plumbing Fixtures and Equipment 5
Water Heaters 2
Piping, Valves and Controls 5
Sheet Metal and Ducts 6
Water Supply 5
Hangers and Supports 4
Drain, Waste and Vent 5
Backflow 2
Traps and Interceptors 4
Developed Length 3
Isometric Analysis 8
Safety 4
Joints and Connections 3
General Plumbing Regulations 3
Fire Sprinklers 4
Refrigerants and Refrigeration 4
Heating and Cooling Principles 4
Load Calculations 5
Testing, Adjusting and Balancing 1
HVAC Equipment 4

Total number of test questions: 100
Time allowed (hours): 4.0
The state of Mississippi also requires that you take and pass a written Law and Business Management exam for this trade.

Go to Business and Law Offering

Books Allowed in the Exam

1. Modern Refrigeration and Air Conditioning, 19th or 20th Edition, Althous, Turnquist, Bowditch, Bracciano. Buy at Amazon
2. Code of Federal Regulations - 29 CFR Part 1926 (OSHA), GPO - OR - (OSHA) Selections by PSI, (latest amendments). Buy from Publisher
3. International Fuel Gas Code, 2012, ICC. Buy at Amazon
4. HVAC Duct Construction Standards - Metal and Flexible, 3rd Edition, 2005, SMACNA. Buy at Amazon
5. Manual N - Load Calculation for Commercial Summer and Winter Air Conditioning, 5th Edition, 2008, ACCA. Buy at Amazon
6. International Mechanical Code, 2012, ICC. Buy at Amazon
7. International Plumbing Code, 2012, ICC. Buy at Amazon
8. NFPA 58: Liquefied Petroleum Gas Code, 2001, NFPA NFPA Link
9. NFPA 13: Installation of Sprinkler Systems, 2002, NFPA NFPA Link
10. ACCA Ductulator (Duct Slide Rule), ACCA. Buy at Amazon
11. Manual D - Residential Duct Systems, 3rd Edition, 2009, ACCA. Buy at Amazon
12. Pipefitter’s Handbook, 3rd Edition, 1967, Forrest R. Lindsey. Buy at Amazon

Go to OSHA Resources

Study materials are currently NOT available for this exam

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