Iowa
Master HVAC / Refrigeration with Gas
Apply for the License
Plumbing and Mechanical Systems Board
Iowa Department of Health
321 East 12th Street
Des Moines, IA 50319
Phone: (515) 281-7689
Exam Provider
Iowa Plumbing & Mechanical Systems Board
321 East 12th Street
Des Moines, IA 50319
Phone: (319) 398-1022
Exam Type
OPEN BOOK
Exam Content
| Subject Areas | % of
Questions |
|---|
| HVAC Terms, Principles, Administration & Safety | 16 |
| HVAC Installation Requirements | 14 |
| Venting, Ducts, Combustion Air | 18 |
| Gas Piping | 8 |
| HVAC Electrical | 13 |
| Boilers, Exhaust & Fire Protection | 11 |
| Refrigeration Terms, System Operation | 20 |
Total number of test questions:
100
Time allowed (hours):
4.0
Books Allowed in the Exam
1.
International Mechanical Code, 2021, ICC
2.
Modern Refrigeration and Air Conditioning, 21st Edition, Althouse, Turnquist, Bowditch & Bracciano
3.
NFPA 54/ANSI Z223.1: National Fuel Gas Code, 2021, NFPA
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