Licensing Exams by Trade Name

Washington DC
(313) First Class Stationary Boilers

Apply for the License
District of Columbia
Board of Industrial Trades
1100 4th St SW
Washington, DC  20024
Phone:  (202) 442-4400
Licensing Agency Site
Exam Provider
PSI Services LLC
DCRA Stationary Engineer Licensing
3210 E. Tropicana
Las Vegas, NV 89121
Phone:  (800) 733-2929
PSI DC Stationary Engineer Licensing Site
Exam Type
CLOSED  BOOK
Exam Content
Content Areas% of
Questions
Turbines, Design Auxiliaries & Operations15
Boiler Operations, Maintenance & Safety9
Waste to Energy Plants & Environmental / Pollution Control7
Water Treatment8
Boiler Combustion & Fuels7
Boiler Accessories & Auxiliary Equipment8
Engineering Calculations7
Electrical8
Controls - Pneumatic & Electronic7
Pumps, Feed, Hydronic, & Condensate Systems8
Refrigeration, Air Conditioning & Cooling Towers8
Boiler Design & Principles8
Total number of test questions:
80
Time allowed (hours):
3.0
Books Allowed in the Exam
1.
Boiler Operator's Workbook, 4th Edition, R. Dean Williams
Buy at Amazon
2.
Stationary Engineering, 4th Edition, 2008, Steingress & Frost
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3.
High Pressure Boilers, 5th Edition, 2012, Steingress & Frost
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4.
Steam Plant Operation, 10th Edition, 2016, Woodruff & Lammers
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5.
Boiler Operator's Guide, 4th Edition, Anthony L Kohan
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6.
Refrigeration & Air Conditioning Technology, 7th Edition, Delmar Publishing
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7.
Low Pressure Boilers, 5th Edition, 2018, Steingress
Buy at Amazon
8.
Ugly's Electrical References, 2014, George Hart
Buy at Amazon
9.
Electric Motor Control for Integrated Systems, 4th Edition, Rockis, Mazur
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10.
HVAC Control Systems, 3rd Edition,Ronnie J. Auvil
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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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May-2025