Iowa
Master Refrigeration

Apply for the License

Plumbing and Mechanical Systems Board
Iowa Department of Health
321 East 12th Street
Des Moines, IA 50319
Phone: (866) 280-1521
Iowa Plumbing and Mechanical Licensing

Exam Administrator

Prometric
Attn: Iowa Plumbing Program
1260 Energy Lane
St. Paul, MN 55108
Phone: (800) 341-2170, Fax: (800) 347-9242
Candidate Information

Exam Type

OPEN BOOK

Exam Content

Subject Areas	% of Questions
HARV General	26
Refrigeration Systems	26
Controls	16
Ventilation	10
Piping and Tubing	10
Box Construction	5
Insulation	5
Safety	2

Total Number of Test Questions:	200
Time Allowed (hours)	6.0
Passing percentage	75%

Books Allowed in the Exam

1.	Code of Federal Regulations - 29 CFR Part 1926, (OSHA) Revised July 1, 2008.
2.	International Mechanical Code, 2009, ICC.
3.	Carrier System Design Manual - Part III: Piping Design, 1960, Carrier Air Conditioning Company.
4.	Modern Refrigeration and Air Conditioning, 18th Edition, Althous, Turnquist, Bowditch, Bracciana.
5.	Pipefitter’s Handbook, 3rd Edition, 1967, Forrest R. Lindsey.

Recommended Study Materials

Iowa • Master Refrigeration

Product Name	Price
Comprehensive Tutorial
Practice Tests ( 3 )
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