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Washington DC
(322) Master A/C and Refrigeration Mechanical Limited

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District of Columbia
Board of Industrial Trades ™

1100 4th St SW
Washington, DC  20024
Phone:  (202) 442-4400
Licensing Link

Exam Administrator

PSI Services LLC ™
DCOPLA Program

3210 E. Tropicana
Las Vegas, NV 89121
Phone:  (800) 733-9267
Candidate Bulletin Link

Exam Type

OPEN  BOOK

Exam Content

Subject Areas% of
Questions
Theory, Systems Types, Terminology,
and General Requirements
16
Refrigerant and Condensate Piping18
Evaporators, Compressors, Condensers,
Chillers, Cooling Towers, Heat Pumps,
Heating and AC Appliances
15
Conditioned Air, Supply, Return, Makeup,
Combustion Air, Air Ducts, Dampers and Insulation
15
Electrical Fundamentals and Controls9
Refrigerants10
Operationing Procedures, including Safety9
Maintenance and Repairs8
Total number of test questions:
70
Time allowed (hours):
3.0

Books Allowed in the Exam

1.
International Mechanical Code, 2012, ICC
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2.
Modern Refrigeration and Air Conditioning, 18th Edition, 2004, Althous, Turnquist, Bowditch, Bracciano
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