Construction Trade Exam Research Area

Limited Residential Mechanical Journeyman

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State of Oklahoma
Construction Industries Board

2401 N.W. 23rd Street, Suite 2F
Oklahoma City, OK 73107
Phone: (405) 521-6550
Toll Free: (877) 484-4424
Oklahoma Construction Industry Licensing Link

Exam Administrator

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

Exam Type


Exam Content

Subject Areas # of
Duct Systems (Metallic and Non-Metallic) 9
Vents 3
Insulation 3
Clothes Dryer 3
Range Hoods 1
Clearances 3
Access 4
Appliance Installation 1
Restroom Exhaust Systems 1
Combustion Air 3
Piping 1
General Installation 3
SMACNA Symbols 3
Regulations 2

Total Number of Test Questions: 40
Time Allowed (Minutes): 100
In Oklahoma, you must also pass the Mechanical Business and Law Exam unless you are already a licensed electrical contractor who is adding a classification to your license.

Go to Business and Law Offering

Books Allowed in the Exam

1. International Residential Code, 2009, ICC. Doc Link
2. Oklahoma Mechanical Industry Regulations, Oklahoma Code, Title 158, Chapter 50, 2004 (Revised 2015), Oklahoma Construction Industries Board. Doc Link
3. SMACNA Symbols Sheet (Revised as CAD Standard), SMACNA. Doc Link
Study materials are currently NOT available for this exam

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