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International Code Council M2 Exam Syllabus Topics:

Section	Weight	Objectives
Exhaust & Ventilation Systems	20%	- Ventilation rates and outdoor air requirements - Hazardous and special exhaust systems - Makeup air systems - Commercial kitchen exhaust systems
Fuel Supply Systems	10%	- Piping testing and inspection - Fuel gas piping materials and installation - Pressure regulation and overpressure protection - Gas appliances and connections
Chimneys & Vents	14%	- Clearances and termination requirements - Factory-built chimneys and vents - Chimney construction and materials - Vent systems and connections
Duct Systems	12%	- Dampers and access doors - Insulation and sealing - Duct construction and materials - Duct installation and supports
General Administration	18%	- Code authority and enforcement - Plan review and documentation - Permits and inspections - Manufacturer's instructions and listings
Heating, Cooling & Water Heaters	18%	- HVAC equipment installation and clearance - Solar thermal systems - Boilers and hydronic systems - Heat pumps and cooling equipment - Water heaters and storage tanks
Combustion Air	8%	- Air supply and venting - Combustion air requirements - Confined spaces and equipment rooms

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International Code Council Commercial Mechanical Inspector Sample Questions (Q10-Q15):

NEW QUESTION # 10
Given: single-wall vent, which serves only one appliance, and has a height of 10 feet.
The maximum horizontal length permitted for a 5-inch diameter vent connector serving this vent is _____ feet.

A. 0
B. 7.5
C. 1
D. 2

Answer: B

Explanation:
For a single-wall vent connector serving one appliance, the maximum horizontal length is determined from the vent connector sizing and length rules. For a 5-inch diameter connector with a 10-foot vent height , the permitted maximum horizontal length is 7.5 feet . Therefore, Option B is correct.

NEW QUESTION # 11
When testing dampers located in corridors, the dampers shall demonstrate acceptable closure performance when subjected to _____ fpm velocity across the face of the damper using the UL 555 fire exposure test.

A. 0
B. 1
C. 2
D. 3

Answer: B

Explanation:
Corridor damper testing under the referenced standard requires acceptable closure performance at 150 fpm across the face of the damper. Therefore Option C is correct.

NEW QUESTION # 12
Supports for hazardous exhaust duct shall be constructed of:

A. material complying with UL 181.
B. plastic.
C. noncombustible material.
D. fibrous material.

Answer: C

NEW QUESTION # 13
The exhaust outlet for a clothes dryer is required to be equipped with:

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

Answer: C

Explanation:
The IMC requires clothes dryer exhaust ducts to terminate outside the building and to be equipped with a backdraft damper at the terminal. The code also prohibits screens at dryer terminations because lint can accumulate and obstruct flow. That makes Option A correct and eliminates Option C . The other two choices describe controls not required by the dryer exhaust termination rule.

NEW QUESTION # 14
Given: a six-story, sprinklered, multifamily building with a continuously ventilated shaft extending vertically from the first floor to the roof and used for exhaust.
Which of the following requirements must also be met?

A. fire dampers are installed that are connected to an emergency generator rated for 1 hour.
B. have steel subducts with wall thickness of 0.0186 inch extending 22 inches horizontally into the shaft.
C. kitchen exhaust that penetrates the shaft without a fire damper and extends vertically 22 inches.
D. kitchen exhaust that penetrates the shaft without a fire damper and extends vertically 12 inches.

Answer: C

Explanation:
For this type of continuously ventilated exhaust shaft serving a multifamily building, the code requires the kitchen exhaust connection to penetrate the shaft and extend vertically not less than 22 inches without a fire damper. That matches Option D .

NEW QUESTION # 15
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