Exam Name: Commercial Mechanical Inspector
Certification Provider: International Code Council
Corresponding Certification: Commercial Inspector
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Instant Download International Code Council : M2 Questions & Answers as PDF & Test Engine
Updated: Sep 17, 2026
No. of Questions: 52 Questions & Answers with Testing Engine
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International Code Council M2 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Exhaust & Ventilation Systems | 20% | - Makeup air systems - Ventilation rates and outdoor air requirements - Hazardous and special exhaust systems - Commercial kitchen exhaust systems |
| Topic 2: Heating, Cooling & Water Heaters | 18% | - Water heaters and storage tanks - HVAC equipment installation and clearance - Heat pumps and cooling equipment - Boilers and hydronic systems - Solar thermal systems |
| Topic 3: Duct Systems | 12% | - Dampers and access doors - Duct construction and materials - Duct installation and supports - Insulation and sealing |
| Topic 4: Fuel Supply Systems | 10% | - Fuel gas piping materials and installation - Pressure regulation and overpressure protection - Piping testing and inspection - Gas appliances and connections |
| Topic 5: General Administration | 18% | - Manufacturer's instructions and listings - Permits and inspections - Plan review and documentation - Code authority and enforcement |
| Topic 6: Combustion Air | 8% | - Combustion air requirements - Air supply and venting - Confined spaces and equipment rooms |
| Topic 7: Chimneys & Vents | 14% | - Vent systems and connections - Chimney construction and materials - Factory-built chimneys and vents - Clearances and termination requirements |
International Code Council Commercial Mechanical Inspector Sample Questions:
Infrared radiant heaters shall be installed:
- A. with clearances from combustible material in accordance with the manufacturer's installation instructions.
- B. in accordance with UL 2158.
- C. in accordance with UL 1240.
- D. with a 6-ft. clearance on all sides.
Correct Answer: A 🗳️
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Where located on a roof with a 5:12 slope, a level platform shall be provided along the access panel of the furnace at least _____ inches wide.
- A. 36
- B. 30
- C. [option text not fully visible in the material you sent]
- D. 24
Correct Answer: B 🗳️
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What is the minimum distance required between a combustion air opening at the exterior of a building and a lot line?
- A. 3 feet
- B. 2 feet
- C. 10 feet
- D. 8 feet
Correct Answer: C 🗳️
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Natural, manufactured and liquefied petroleum, or a mixture of these, make up:
- A. fuel gas.
- B. fuel oil.
- C. natural gas.
- D. liquefied petroleum gas.
Correct Answer: A 🗳️
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Exhibit:
What hp is EF-2?
- A. 1.5
- B. 2
- C. 1/2
- D. 1
Correct Answer: A 🗳️
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