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International Code Council M2 Exam Syllabus Topics:

SectionObjectives
Heating and Cooling Systems- Heating Appliances
  • 1. Water Heaters
  • 2. Boilers
  • 3. Furnaces
- Cooling Systems
  • 1. Cooling Appliances
  • 2. Refrigeration Equipment
Materials and Specifications- Approved Materials
  • 1. Installation Standards
  • 2. Equipment Labeling
Duct Systems- Duct Construction
  • 1. Dampers and Protection
  • 2. Materials and Installation
- Air Distribution
  • 1. Plenums
  • 2. Duct Insulation
General Administration- Code Scope and Administration
  • 1. Referenced Standards
  • 2. Definitions
  • 3. Permits and Inspections
Hydronic Piping and Refrigeration- Refrigeration
  • 1. Safety Controls
  • 2. Refrigerant Piping
- Hydronic Systems
  • 1. Piping Installation
  • 2. Pressure Testing
Chimneys and Vents- Vent Systems
  • 1. Vent Sizing
  • 2. Chimney Clearances
- Connectors and Terminations
  • 1. Vent Connectors
  • 2. Termination Requirements
Combustion Air and Fuel Supply- Fuel Supply Systems
  • 1. Fuel Oil Systems
  • 2. Fuel Gas Piping
- Combustion Air
  • 1. Combustion Air Openings
  • 2. Indoor and Outdoor Air Requirements
Ventilation and Exhaust Systems- Ventilation
  • 1. Exhaust Air Systems
  • 2. Mechanical Ventilation
- Commercial Kitchens
  • 1. Kitchen Exhaust Hoods
  • 2. Grease Ducts

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International Code Council Commercial Mechanical Inspector Sample Questions (Q28-Q33):

NEW QUESTION # 28
Natural, manufactured and liquefied petroleum, or a mixture of these, make up:

Answer: C

Explanation:
The IFGC definition of fuel gas is: natural gas, manufactured gas, liquefied petroleum gas or mixtures of these gases . That definition directly matches Option B .


NEW QUESTION # 29
Infrared radiant heaters shall be installed:

Answer: C

Explanation:
The ICC mechanical code provision for infrared radiant heaters states that the heaters must be installed with clearances from combustible material in accordance with the manufacturer's installation instructions .
That makes Option D the correct answer. The code does not establish a blanket 6-foot clearance on all sides in this section, and the exam expects the candidate to rely on the listed installation requirements for the appliance.


NEW QUESTION # 30
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.

Answer: C

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 # 31
The minimum dimension for rectangular air ducts used to supply combustion air for natural draft systems is
_____ inches.

Answer: C

Explanation:
The IMC combustion-air provisions require openings used for combustion air to have a minimum cross- sectional dimension of 3 inches . Where ducts are used, they must be of the same cross-sectional area as the openings to which they connect. That makes 3 inches the correct answer, so Option B is correct.


NEW QUESTION # 32
A low-pressure steam heating boiler is a boiler furnishing a maximum steam pressure of _____ psi.

Answer: A

Explanation:
A low-pressure steam heating boiler is defined as a boiler furnishing steam at pressures not exceeding 15 psi . That matches Option B .


NEW QUESTION # 33
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