Try International Code Council : M2 valid & accurate questions and answers

Last Updated: Oct 13, 2026

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International Code Council M2 Practice Q&A's

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International Code Council M2 Exam Overview:

Certification Vendor:International Code Council (ICC)
Exam Name:Commercial Mechanical Inspector M2 Exam
Exam Number:M2
Real Exam Qty:50
Exam Format:Multiple-choice, Open-book
Certificate Validity Period:3 years
Related Certifications:Commercial Plumbing Inspector
Commercial Electrical Inspector
Commercial Building Inspector
Available Languages:English
Exam Price:$219 (ICC members), $249-$320 (non-members)
Exam Duration:120 minutes
Passing Score:75 (scaled score)
Recommended Training:ICC Official Training
ICC Code Resources
Exam Registration:Pearson VUE Scheduling
ICC Official Registration
Sample Questions: DOWNLOAD DEMO
Exam Way:Onsite at Pearson VUE test centers; Online remote proctoring via ICC PRONTO
Pre Condition:No mandatory prerequisites; recommended knowledge of International Mechanical Code (IMC) and International Fuel Gas Code (IFGC)
Official Syllabus URL:https://www.iccsafe.org/certification/certification-exams/m2-commercial-mechanical-inspector/

International Code Council M2 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Fuel Supply Systems10%- Piping testing and inspection
- Fuel gas piping materials and installation
- Gas appliances and connections
- Pressure regulation and overpressure protection
Topic 2: Duct Systems12%- Duct installation and supports
- Dampers and access doors
- Duct construction and materials
- Insulation and sealing
Topic 3: Heating, Cooling & Water Heaters18%- Water heaters and storage tanks
- Solar thermal systems
- HVAC equipment installation and clearance
- Heat pumps and cooling equipment
- Boilers and hydronic systems
Topic 4: Chimneys & Vents14%- Chimney construction and materials
- Factory-built chimneys and vents
- Vent systems and connections
- Clearances and termination requirements
Topic 5: Combustion Air8%- Air supply and venting
- Combustion air requirements
- Confined spaces and equipment rooms
Topic 6: General Administration18%- Code authority and enforcement
- Plan review and documentation
- Permits and inspections
- Manufacturer's instructions and listings
Topic 7: Exhaust & Ventilation Systems20%- Hazardous and special exhaust systems
- Ventilation rates and outdoor air requirements
- Makeup air systems
- Commercial kitchen exhaust systems

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At present, the M2 exam's passing score is 75 (scaled score), and registration costs $219 (ICC members), $249-$320 (non-members). Since failing means registering again at full price, thorough preparation is the economical choice — and International Code Council can revise both figures, so confirm them officially before booking.

The International Code Council Commercial Mechanical Inspector blueprint is built around these main domains:

  • Duct Systems (12%)
  • Heating, Cooling & Water Heaters (18%)
  • Combustion Air (8%)

Additional domains appear in the full official outline — our bank covers them all.

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International Code Council lists these official training options:

Combine structured training with engine-based practice to cover both theory and test-taking rhythm.

By a professional group with dedicated contribution — experienced engineers and educators in this industry who compile every M2 question and verify every answer across the International Code Council Commercial Mechanical Inspector objectives. Maintenance is continuous: as new technology standards and knowledge emerge, revisions follow, and each updated version is sent to your mailbox immediately, free for 365 days, with a 50% renewal discount for further partnership. Privacy is protected by principle — your information is classified and never sold or shared, so no one will call you to sell something after our cooperation. And preferential terms — bundle discounts on the three versions, irregular coupons, little gifts — thank you for your trust in return.

International Code Council publishes these prerequisites for the International Code Council Commercial Mechanical Inspector: No mandatory prerequisites; recommended knowledge of International Mechanical Code (IMC) and International Fuel Gas Code (IFGC).

Verify the current requirements on the official certification page.

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International Code Council Commercial Mechanical Inspector Sample Questions:

Question #1

The minimum rise required for a 10-foot run of vent connector is _____ inches.

  • A. 2-1/2
  • B. 1-1/2
  • C. 2
  • D. 1-1/4
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

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Question #2

Exhaust is required for which of the following areas?

  • A. Gambling casinos
  • B. High school locker rooms
  • C. Office break rooms
  • D. Prison guard stations
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

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Question #3

The optional integral clearance reduction system is designed to meet which NFPA standard?

  • A. 96
  • B. 33
  • C. 72
  • D. 92A
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

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Question #4

What is the minimum distance required between a combustion air opening at the exterior of a building and a lot line?

  • A. 10 feet
  • B. 8 feet
  • C. 2 feet
  • D. 3 feet
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

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Question #5

ERV systems shall not be installed in which of the following except:

  • A. common exhaust systems for clothes dryers.
  • B. exhaust systems emitting corrosive materials.
  • C. equipment designed to assist in the evacuation of occupants.
  • D. systems utilizing coil-type exchangers.
Reveal Solution  Discussion  0

Correct Answer: D  🗳️

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