Purchase International Code Council : M2 Exam Materials and then pass exam easily
Updated: Sep 17, 2026
No. of Questions: 52 Questions & Answers with Testing Engine
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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 |
| Certificate Validity Period: | 3 years |
| Exam Price: | $219 (ICC members), $249-$320 (non-members) |
| Related Certifications: | Commercial Building Inspector Commercial Plumbing Inspector Commercial Electrical Inspector |
| Exam Format: | Multiple-choice, Open-book |
| Available Languages: | English |
| Real Exam Qty: | 50 |
| Passing Score: | 75 (scaled score) |
| Exam Duration: | 120 minutes |
| Recommended Training: | ICC Official Training ICC Code Resources |
| Exam Registration: | ICC Official Registration Pearson VUE Scheduling |
| Sample Questions: | International Code Council M2 Sample Questions |
| 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:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Duct Systems | 12% | - Duct construction and materials - Insulation and sealing - Dampers and access doors - Duct installation and supports |
| Topic 2: Chimneys & Vents | 14% | - Chimney construction and materials - Factory-built chimneys and vents - Vent systems and connections - Clearances and termination requirements |
| Topic 3: General Administration | 18% | - Manufacturer's instructions and listings - Plan review and documentation - Permits and inspections - Code authority and enforcement |
| Topic 4: Combustion Air | 8% | - Confined spaces and equipment rooms - Air supply and venting - Combustion air requirements |
| Topic 5: Fuel Supply Systems | 10% | - Pressure regulation and overpressure protection - Fuel gas piping materials and installation - Gas appliances and connections - Piping testing and inspection |
| Topic 6: Exhaust & Ventilation Systems | 20% | - Makeup air systems - Ventilation rates and outdoor air requirements - Commercial kitchen exhaust systems - Hazardous and special exhaust systems |
| Topic 7: Heating, Cooling & Water Heaters | 18% | - Boilers and hydronic systems - Heat pumps and cooling equipment - HVAC equipment installation and clearance - Solar thermal systems - Water heaters and storage tanks |
International Code Council Commercial Mechanical Inspector Sample Questions:
Supports for hazardous exhaust duct shall be constructed of:
- A. material complying with UL 181.
- B. noncombustible material.
- C. fibrous material.
- D. plastic.
Correct Answer: B 🗳️
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The optional integral clearance reduction system is designed to meet which NFPA standard?
- A. 33
- B. 92A
- C. 96
- D. 72
Correct Answer: C 🗳️
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When a permit is issued, the code requires that one set of approved plans and specifications be returned to the applicant.
This set of plans and specifications shall be:
- A. retained by the applicant for at least one year after the job is finished in the event modifications are made.
- B. filed with the county clerk or jurisdiction to properly record the property.
- C. kept on the building site.
- D. returned to the architect.
Correct Answer: C 🗳️
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A cooling system with a condensate disposal system:
- A. shall be made of an approved pipe and be at least 1/2-inch in diameter.
- B. shall be made of approved corrosion-resistant material and shall not decrease in size from the drain pan connection to the place of condensate disposal.
- C. shall not be less than 3/4-inch PVC pipe or equivalent approved material.
- D. shall have all horizontal sections of drain piping installed with a minimum of 1/4 inch per foot slope.
Correct Answer: B 🗳️
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What is the maximum distance allowed below the design flood elevation from which ventilation may be obtained?
- A. 6 inches
- B. 1 foot
- C. 2 feet
- D. 0 inches
Correct Answer: B 🗳️
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