Iowa HVAC Contractor License Vocabulary Game
Exam terms with clues and explanations by OpenExamPrep.
About the Iowa HVAC Contractor License Vocabulary Games
4 free word games built on 20 Iowa HVAC Contractor License terms across 8 topics. Every game deals terms at random and shows what each term means, so you can keep playing as long as you like.
How to Play
- 1.Read the clue and type the term (3 to 6 letters).
- 2.Green: right spot. Yellow: wrong spot. Gray: not in the term.
- 3.Solve it in 6 tries, then read the explanation.
- 1.Swap two neighboring tiles to line up 3 of the same term.
- 2.Longer lines, two lines at once and chains score more.
- 3.Play until no swap can make a line.
- 1.Flip two cards. A matching pair stays face up.
- 2.Each pair you find shows what the term means.
- 3.Clear the board in as few moves as you can.
- 1.Find each listed term in the letter grid.
- 2.Drag across its letters: across, down or diagonally.
- 3.Find all five as fast as you can.
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Topics in the Iowa HVAC Contractor License Vocabulary Game
HVAC principles
HVAC Installation
Refrigeration systems
Duct and air
Fuel supply
Wiring safety
Heating equipment
Contractor rules
Sources for these terms (20)
- Chapter 2: Refrigerated Condensers · Source checked 2026-11-06
- Ozone-Depleting Substances · Source checked 2026-11-06
- Stationary Refrigeration and Air Conditioning · Source checked 2026-11-06
- eTool: Construction - Electrical Incidents - Ground-Fault Circuit Interrupters (GFCI) · Source checked 2026-11-06
- 1926.407 - Hazardous (classified) locations · Source checked 2026-11-06
- IMC - International Code Council · Source checked 2026-11-06
- Glossary · Source checked 2026-11-06
- Pressure and Gas Flow Unit Conversions · Source checked 2026-11-06
- 10 CFR 430.2 - Definitions (CFR 2026 edition) · Source checked 2026-11-06
- Stationary Refrigeration - Prohibition on Venting Refrigerants · Source checked 2026-11-06
- Background on HFCs and the AIM Act · Source checked 2026-11-06
- HFC Allowance Allocation and Reporting · Source checked 2026-11-06
- Technology Transitions HFC Restrictions by Sector · Source checked 2026-11-06
- Building America Best Practices Series, Volume 14: Energy Renovations - HVAC, A Guide for Contractors to Share with Homeowners (PNNL-20421) · Source checked 2026-11-06
- 2021 International Mechanical Code - IMC (Building America Solution Center) · Source checked 2026-11-06
- 1910.110 - Storage and handling of liquefied petroleum gases (paragraphs (a) to (d)(13)) · Source checked 2026-11-06
- British thermal units (Btu) - U.S. Energy Information Administration · Source checked 2026-11-06
- Examination · Source checked 2026-11-06
- Contractor License · Source checked 2026-11-06
- PMSB Definitions · Source checked 2026-11-06
About the IA HVAC Exam
The Iowa Master HVAC/Refrigeration with Gas exam, given by Kirkwood Community College for the Plumbing and Mechanical Systems Board, is a 100-question, 4-hour open-book test on HVAC terms and administration, installation, venting and ducts, gas piping, electrical, boilers and refrigeration. Master candidates need a journeyperson license plus 2 years of journeyperson experience.
Exam sponsor: Kirkwood Community College for the Iowa Plumbing and Mechanical Systems Board (DIAL). The requirements and fees below concern the certification or admission exam, separate from our free practice resources.
Questions
100 questions
Time Limit
4 hours
Passing Score
75%
Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.
Frequently Asked Questions
Is the IA HVAC vocabulary game free?
Yes. The game is free to play with no sign-up. Signing in adds AI explanations for any term.
How do the IA HVAC vocabulary games work?
There are 4 games built on 20 IA HVAC terms. In Guess the Term, a clue describes one term and you have six tries to spell it, with green, yellow and gray letters showing how close you are. In Term Match, six terms appear as colored tiles; swap neighbors to line up three or more of the same term, and each match shows what the term means. In Term Pairs, twelve face-down cards hide six pairs of terms; flip two at a time to find each pair, and every pair you find shows what the term means. In Term Search, five terms hide in a grid of letters, reading across, down or diagonally; drag across a term to circle it, and each term you find shows what it means.
Where do the IA HVAC terms come from?
OpenExamPrep researched each term from the Kirkwood Community College for the Iowa Plumbing and Mechanical Systems Board (DIAL) content outline and primary sources, listed under Sources on this page. The game is independent study material, not an official exam resource.
What license do I need for HVAC work in Iowa?
HVAC contractors in Iowa need a contractor license from the Plumbing and Mechanical Systems Board, contractor registration with DIAL, and a master of record who holds an active master HVAC/refrigeration license. Master exam candidates need a journeyperson license plus 2 years of journeyperson experience.
What score do I need to pass?
You need 75% to pass the Iowa HVAC contractor exam.