Maryland HVAC Contractor License Vocabulary Game
Exam terms with clues and explanations by OpenExamPrep.
About the Maryland HVAC Contractor License Vocabulary Games
4 free word games built on 20 Maryland HVAC Contractor License terms across 6 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 Maryland HVAC Contractor License Vocabulary Game
Refrigeration and air conditioning
Wiring and controls
Heating systems
Air distribution systems
Safety
Piping
Sources for these terms (24)
- 10 CFR 430.2 - Definitions (CFR 2026 edition) · Source checked 2026-11-04
- 40 CFR Part 438, Appendix C - Metal-Bearing Operations Definitions (CFR 2025 edition) · Source checked 2026-11-04
- 46 CFR Part 56 - Piping Systems and Appurtenances (CFR 2025 edition) · Source checked 2026-11-04
- Combustion Appliance Safety & Efficiency Testing · Source checked 2026-11-04
- Electrical Systems and Safety Oversight · Source checked 2026-11-04
- Incorporate Minimum Efficiency Requirements for Heating and Cooling Products into Federal Acquisition Documents · Source checked 2026-11-04
- Glossary · Source checked 2026-11-04
- Improving Motor and Drive System Performance: A Sourcebook for Industry · Source checked 2026-11-04
- Stationary Refrigeration - Prohibition on Venting Refrigerants · Source checked 2026-11-04
- Background on HFCs and the AIM Act · Source checked 2026-11-04
- Chapter 2: Refrigerated Condensers · Source checked 2026-11-04
- HFC Allowance Allocation and Reporting · Source checked 2026-11-04
- What is a MERV rating? · Source checked 2026-11-04
- Ozone-Depleting Substances · Source checked 2026-11-04
- Stationary Refrigeration and Air Conditioning · Source checked 2026-11-04
- Module 11: Glossary and Conversions · Source checked 2026-11-04
- IMC - International Code Council · Source checked 2026-11-04
- Pressure and Gas Flow Unit Conversions · Source checked 2026-11-04
- 1910.110 - Storage and handling of liquefied petroleum gases (paragraphs (a) to (d)(13)) · Source checked 2026-11-04
- 1926.407 - Hazardous (classified) locations · Source checked 2026-11-04
- eTool: Construction - Electrical Incidents - Ground-Fault Circuit Interrupters (GFCI) · Source checked 2026-11-04
- Personal Protective Equipment · Source checked 2026-11-04
- 2021 International Mechanical Code - IMC (Building America Solution Center) · Source checked 2026-11-04
- 2018 International Mechanical Code - Section 202 General Definitions · Source checked 2026-11-04
About the MD HVAC Exam
The Maryland Master HVACR examination tests electrical systems, motors and controls, piping, refrigeration and air conditioning, heating systems, air distribution, and safety. Maryland separately issues Master, Master Restricted, Limited, Journeyman, and Journeyman Restricted licenses.
Exam sponsor: Maryland Board of HVACR Contractors (PSI testing). 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
70%
Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.
Frequently Asked Questions
Is the MD 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 MD HVAC vocabulary games work?
There are 4 games built on 20 MD 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 MD HVAC terms come from?
OpenExamPrep researched each term from the Maryland Board of HVACR Contractors (PSI testing) content outline and primary sources, listed under Sources on this page. The game is independent study material, not an official exam resource.
What license types does Maryland offer for HVACR work?
Maryland offers six license classifications: Master, Master Restricted, Limited, Journeyman, Journeyman Restricted, and Apprentice. Contractor-level licenses may contract within their authorized scope; journeymen and apprentices work under direction and control.
What restricted examination groups does PSI list?
PSI lists Air Conditioning, Full Heating, Forced Air Heating, Hydronic Heating, Refrigeration, and Ventilation. Full Heating combines two areas for examination scheduling; Title 9A separately defines five restricted license areas, so use the current Board application for the credential and scope you seek.