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ArticleFree HVAC Contractor Practice Test by State 2026: 3,400+ Questions24 min read
Exam Review

Key Facts: MI HVAC Exam

70%

Passing Score

MI LARA

150 Q / 3 hrs

HVAC Equipment Exam

MI BCC

14

License Classifications

MI LARA

3 Years

Experience Per Classification

MI LARA

100 Q

Practice Questions Available

OpenExamPrep

Sample MI HVAC Practice Questions

Try these sample questions to review concepts for the MI HVAC exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 114+ question experience with AI tutoring.

1Which Michigan state agency issues Mechanical Contractor licenses for HVAC work?
A.Michigan Department of Health and Human Services
B.Michigan Department of Licensing and Regulatory Affairs (LARA), Bureau of Construction Codes
C.Michigan Department of Environment, Great Lakes, and Energy
D.Michigan Occupational Safety and Health Administration
Explanation: LARA's Bureau of Construction Codes (BCC) issues Mechanical Contractor licenses in Michigan. All HVAC, refrigeration, and mechanical work requiring licensure is administered through this agency.
2How many years of experience are required for each mechanical contractor classification in Michigan?
A.1 year per classification
B.2 years per classification
C.3 years or 6,000 hours per classification
D.5 years per classification
Explanation: Michigan requires a minimum of 3 years or 6,000 hours of work experience in each specific classification applied for. A 2-year approved HVAC program can substitute for up to 1 year or 2,000 hours of this requirement.
3What is the passing score for Michigan mechanical contractor licensing exams?
A.60%
B.65%
C.70%
D.75%
Explanation: Per Michigan Administrative Rule R 339.5114 (effective May 3, 2023), a minimum score of 75% is required to pass any Michigan mechanical contractor written examination, regardless of the specific classification being tested.
4How many questions are on the Michigan HVAC Equipment classification exam?
A.55 questions
B.75 questions
C.100 questions
D.150 questions
Explanation: The Michigan HVAC Equipment classification exam has 150 questions with a 3-hour time limit. This is the largest exam; all other mechanical classifications have 55 questions with a 1-hour time limit.
5What is the minimum age requirement to apply for a Michigan Mechanical Contractor license?
A.16 years old
B.18 years old
C.21 years old
D.No age requirement
Explanation: Applicants for a Michigan Mechanical Contractor license must be at least 18 years old and have a high school diploma or GED equivalent.
6How much credit toward the 3-year experience requirement can a 2-year approved HVAC program provide in Michigan?
A.No credit is given
B.Up to 6 months or 1,000 hours
C.Up to 1 year or 2,000 hours
D.The full 3 years
Explanation: Michigan allows credit of up to 1 year or 2,000 hours from a recognized 2-year HVAC trade school, community college, or DOL-approved training program toward the 3-year/6,000-hour experience requirement.
7Which Michigan mechanical contractor classification covers installation of forced air heating and cooling systems, gas piping, and exhaust systems?
A.Ductwork classification
B.Refrigeration classification
C.HVAC Equipment classification
D.Hydronic Heating and Cooling classification
Explanation: The HVAC Equipment classification in Michigan covers the installation of forced air heating and cooling systems, gas piping systems (natural gas, fuel oil, propane), CSST installation, and exhaust systems.
8What is the renewal cycle for Michigan mechanical contractor licenses?
A.Annual renewal
B.2-year cycle
C.3-year cycle
D.5-year cycle
Explanation: Michigan mechanical contractor licenses are issued in 3-year cycles. Licenses are valid for the remainder of the current cycle and must be renewed before expiration to avoid lapse.
9Is continuing education required for Michigan mechanical contractor license renewal?
A.Yes, 20 hours per renewal cycle
B.Yes, 40 hours per renewal cycle
C.No continuing education is currently required
D.Yes, 10 hours annually
Explanation: Michigan does not currently require continuing education for mechanical contractor license renewal. Licenses are renewed administratively without CE requirements, though this may change in the future.
10What Michigan classification covers the fabrication and installation of ductwork including flues, vents, registers, and air filters?
A.HVAC Equipment
B.Ductwork
C.Refrigeration
D.Fire Suppression
Explanation: The Ductwork classification specifically covers fabrication and installation of ductwork including flues, vents, registers, and air filters. It is a separate classification from HVAC Equipment.

About the MI HVAC Exam

The Michigan Mechanical Contractor licensing exam tests knowledge of HVAC equipment installation, ductwork, gas piping, refrigeration, hydronic systems, and the Michigan Mechanical Code. Michigan offers 14 classifications, with HVAC Equipment (150 questions) being the most comprehensive.

Exam sponsor: Michigan LARA, Bureau of Construction Codes (BCC). The requirements and fees below concern the certification or admission exam, separate from our free practice resources.

Questions

150 questions

Time Limit

3 hours (HVAC Equipment); 1 hour (other classifications)

Passing Score

70%

Exam / Certification Fees

Varies by classification

Exam sponsor website

Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.

Our practice resources: topics covered

We aim to reflect publicly available exam outlines and topic information in our study resources. Coverage, format, and difficulty may differ from the actual exam, and we cannot guarantee that every detail is accurate or current. Confirm exam requirements, fees, and policies with the official exam sponsor.

25%

State Laws & Licensing

Michigan LARA/BCC regulations, 14 classifications, experience requirements, permits, and the Skilled Trades Regulation Act

30%

Heating & Gas Systems

Gas furnaces, boilers, heat pumps, gas piping, venting, combustion analysis, and hydronic systems

15%

Ductwork & Air Distribution

Duct design, sizing, fabrication, balancing, HRV/ERV, and Michigan Energy Code requirements

15%

Mechanical Codes & Energy

Michigan Mechanical Code, IMC, IECC, clearances, venting, and energy efficiency standards

15%

Safety & Business

OSHA, gas safety, CO detection, business management, contracts, and Michigan Construction Lien Act

Preparing for the MI HVAC Exam

What You Need to Know

  • Passing score: 70%
  • Exam length: 150 questions
  • Time limit: 3 hours (HVAC Equipment); 1 hour (other classifications)
  • Exam / certification fees: Varies by classification Official sources

Using Our Practice Resources

  • Work through all 114 available questions
  • Review every answer and explanation
  • Track weak areas and revisit them
  • Use our AI tutor for tough concepts

MI HVAC: Suggested Study Strategy

1Focus heavily on the Michigan Mechanical Code (based on IMC with Michigan amendments) — it is the foundation of the exam
2Study gas piping sizing tables, venting categories (I through IV), and combustion air requirements thoroughly
3Know the 14 classification scopes and understand what each classification authorizes you to install or service
4Review Michigan Energy Code requirements for duct insulation, air sealing, and equipment efficiency minimums

Frequently Asked Questions

How many classification exams does Michigan offer for mechanical contractors?

Michigan offers 14 different mechanical contractor classifications. Key ones include HVAC Equipment (150 questions, 3 hours), Ductwork, Refrigeration, Hydronic Heating and Cooling, and various service classifications.

What experience is needed for a Michigan Mechanical Contractor license?

You need 3 years or 6,000 hours of experience in each classification you apply for. A 2-year approved HVAC program can substitute for up to 1 year or 2,000 hours.

Is continuing education required for Michigan mechanical license renewal?

No. Michigan does not currently require continuing education for mechanical contractor license renewal. Licenses are renewed on a 3-year cycle.

What is the HVAC Equipment exam format?

150 multiple-choice questions with a 3-hour time limit. You need 70% to pass. All other classification exams are 55 questions with a 1-hour time limit.