International Code Council M2 Actual Free Exam Questions & Community Discussion

Exam Code/Number: M2
Exam Name/Title: Commercial Mechanical Inspector
Certification Provider: International Code Council
Corresponding Certification: Commercial Inspector

Exam Questions: 52
Updated On: Jul 12, 2026

Question #1

Exhibit:

CEF-5 is a ceiling exhaust fan manufactured by:

A. Markel

B. Carnes

C. Nutone

D. G.E.

Discussion 0

Correct Answer: C Vote an answer

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Question #2

Termination of vents for appliances listed for and installed outdoors that incorporate integral venting shall:

A. be installed in accordance with their listings and the manufacturer's installation instructions.

B. terminate not less than 5 feet vertically above the lowest connected appliance draft hood outlet or flue collar.

C. be installed in accordance with the design professional's plans as approved by the local building official.

D. terminate not less than 5 feet vertically above the highest connected appliance draft hood outlet or flue collar.

Discussion 0

Correct Answer: A Vote an answer

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Question #3

For the installation of listed fuel-burning appliances, the required clearances should be found:

A. by using a calculation based on the Btu/h output rating of the appliance.

B. in the mechanical code.

C. on the approved plans and specifications for the building.

D. on the nameplate of the appliance.

Discussion 0

Correct Answer: D Vote an answer

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Question #4

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

A. 2

B. 1-1/4

C. 1-1/2

D. 2-1/2

Discussion 0

Correct Answer: D Vote an answer

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Question #5

The exhibit shows a _____ in. diameter gas line between unit heaters 5 and 8.

A. 1-1/4

B. 3/4

C. 1-1/8

D. 1

Discussion 0

Correct Answer: D Vote an answer

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Question #6

Where the cooking surface has exposed flame and burners, the minimum distance between the lowest edge of a grease filter and the cooking or heating surface shall be _____ inches.

A. 42

B. 24

C. 18

D. 48

Discussion 0

Correct Answer: B Vote an answer

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