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International Code Council M2 Exam Syllabus Topics:

SectionObjectives
Topic 1: Duct Systems- Duct Construction
  • 1. Dampers and Protection
  • 2. Materials and Installation
- Air Distribution
  • 1. Duct Insulation
  • 2. Plenums
Topic 2: Materials and Specifications- Approved Materials
  • 1. Installation Standards
  • 2. Equipment Labeling
Topic 3: Combustion Air and Fuel Supply- Combustion Air
  • 1. Indoor and Outdoor Air Requirements
  • 2. Combustion Air Openings
- Fuel Supply Systems
  • 1. Fuel Oil Systems
  • 2. Fuel Gas Piping
Topic 4: Heating and Cooling Systems- Heating Appliances
  • 1. Boilers
  • 2. Furnaces
  • 3. Water Heaters
- Cooling Systems
  • 1. Cooling Appliances
  • 2. Refrigeration Equipment
Topic 5: General Administration- Code Scope and Administration
  • 1. Permits and Inspections
  • 2. Definitions
  • 3. Referenced Standards
Topic 6: Chimneys and Vents- Vent Systems
  • 1. Chimney Clearances
  • 2. Vent Sizing
- Connectors and Terminations
  • 1. Termination Requirements
  • 2. Vent Connectors
Topic 7: Ventilation and Exhaust Systems- Commercial Kitchens
  • 1. Grease Ducts
  • 2. Kitchen Exhaust Hoods
- Ventilation
  • 1. Mechanical Ventilation
  • 2. Exhaust Air Systems
Topic 8: Hydronic Piping and Refrigeration- Hydronic Systems
  • 1. Pressure Testing
  • 2. Piping Installation
- Refrigeration
  • 1. Refrigerant Piping
  • 2. Safety Controls

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International Code Council Commercial Mechanical Inspector Sample Questions (Q13-Q18):

NEW QUESTION # 13
The minimum rise required for a 10-foot run of vent connector is _____ inches.

Answer: D

Explanation:
Vent connectors must be installed with a minimum rise of 1/4 inch per foot . For a 10-foot run, the required rise is:
10 ร— 1/4 inch = 2.5 inches .
That equals 2-1/2 inches , so Option D is correct.


NEW QUESTION # 14
Pipe and duct insulation can be used within plenums except:

Answer: D

Explanation:
For materials such as pipe and duct insulation within plenums, the IMC references ASTM E84 or UL 723 for surface-burning characteristics, along with the flame-spread and smoke-developed limits applicable to plenums. ASTM B84 is not the referenced plenum test standard here, so it is the incorrect condition and therefore the correct exam answer to the "except" question. This makes Option C correct.


NEW QUESTION # 15
Given: A recirculating industrial direct-fired makeup air heater has a rated input of 200,000 Btu/h .
Ventilation air is supplied by separate mechanical means.
Outside ventilation air shall be provided to supply at least _____ CFM.

Answer: B

Explanation:
The applicable provision requires direct-fired industrial air heaters to supply outside ventilation air at a rate of not less than 4 cfm per 1,000 Btu/h of rated input where ventilation air is provided by separate mechanical means. For 200,000 Btu/h , the required outside air is:
200,000 รท 1,000 = 200
200 ร— 4 = 800 cfm
So the correct answer is C


NEW QUESTION # 16
To test for tightness, a consumer's gas piping should never be filled with:

Answer: A

Explanation:
The IFGC section on test medium states that the test medium shall be air, nitrogen, carbon dioxide or an inert gas , and specifically states that oxygen shall not be used as a test medium . That makes C the correct answer.


NEW QUESTION # 17
When a furnace is installed in a 66-inch-high attic, the maximum distance from the passageway access to the furnace shall be _____ ft., measured along the centerline of the passageway.

Answer: C

Explanation:
ICC mechanical access provisions for appliances in attics require the passageway to be not more than 20 feet in length , measured along the centerline of the passageway from the opening to the appliance, where the attic passageway is the standard reduced-height access condition. Since the attic height given is 66 inches, the standard maximum length applies, so Option C is correct. The 50-foot allowance applies only under a different exception where the passageway is unobstructed and at least 6 feet high for its entire length.


NEW QUESTION # 18
......

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