Licensing Exams by Trade Name - Home Link

Washington DC

(323) Third Class Stationary Boilers

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District of Columbia
Board of Industrial Trades

1100 4th St SW
Washington, DC  20024
Phone:  (202) 442-4400
Exam Provider
PSI Services LLC
DCOPLA Program

3210 E. Tropicana
Las Vegas, NV 89121
Phone:  (800) 733-2929
Exam Type
Exam Content
Content Areas% of
Boiler Operations, Maintenance, and Safety10
Water Treatment10
Boiler Combustion, Fuels, and Pollution Control10
Boiler Accessories and Auxiliary Equipment10
Engineering Calculations10
Controls - Pneumatic and Electronic10
Pumps, Feed, Hydronic, and Condensate Systems10
Refrigeration, Air Conditioning, and Cooling Towers10
Boiler Design and Principles10
Total number of test questions:
Time allowed (hours):
Books Allowed in the Exam
Boiler Operator's Workbook, 4th Edition, R. Dean Williams
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Stationary Engineering, 4th Edition, Harold J. Frost, Daryl R. Frederick, M. Steingress
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High Pressure Boilers, 5th Edition, Frederick Steingress, Harold Frost
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Steam Plant Operation, 10th Edition, Woodruff and Lammers
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Boiler Operator's Guide, 4th Edition, Anthony L Kohan
Buy at Amazon
Ugly's Electrical References, 2014, George V. Hart
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Low Pressure Boilers, 5th Edition, Frederick M. Steingress
Buy at Builders Book
HVAC Control Systems, 3rd Edition,Ronnie J. Auvil
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Electric Motor Control for Integrated Systems, 4th Edition, Gary J. Rockis, Glen A. Mazur
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With the exception of Ugly's Electrical References, any edition of the above books are acceptable

A practice exam is currently NOT AVAILABLE

This page is being provided for research and links to books sources only.  We do not have an expected date for availability.  This page may have changed since your last visit.  Please refresh to see current info (F5 on your keyboard).

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