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International Code Council M2 Actual Tests : Commercial Mechanical Inspector

M2 actual test
  • Exam Code: M2
  • Exam Name: Commercial Mechanical Inspector
  • Updated: Sep 09, 2026
  • Q & A: 52 Questions and Answers
  • PDF Demo
  • PC Test Engine
  • Online Test Engine
  • Total Price: $59.99  

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International Code Council M2 Exam Syllabus Topics:

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

International Code Council Commercial Mechanical Inspector Sample Questions:

Question 1

The exhaust outlet for a clothes dryer is required to be equipped with:

A. a corrosion-resistant screen of 1/4-inch mesh.
B. a backdraft damper.
C. an automatically controlled volume damper.
D. a temperature limit control device that will automatically shut off the system at a temperature of 250°F.


Question 2

To test for tightness, a consumer's gas piping should never be filled with:

A. dry air.
B. inert gas.
C. air.
D. oxygen.


Question 3

An equipment shutoff valve shall be in the same room and not more than how many feet away from the appliance?

A. 7
B. 6
C. 8
D. 9


Question 4

Given: Fabricated of type 430 stainless steel.


Optional type _____ stainless steel is available.

A. 303
B. 304
C. 301
D. 316


Question 5

Why are two or more sets of construction documents, engineering calculations, diagrams, and other data required to be submitted with each application for a permit?

A. To ensure that the project is completed in a timely manner.
B. All sets are to be retained by the code official in order to have a spare set of construction documents for use by any subcontractors.
C. All sets of documents are to be kept by the code official, and at least one set will serve as a backup set of documents in case the other is lost or misplaced.
D. One set will be retained by the code official, and the other will be returned to the applicant and kept on the job site for reference while construction is in progress.


Solutions:

Question 1
Answer: B
Question 2
Answer: D
Question 3
Answer: B
Question 4
Answer: B
Question 5
Answer: D

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