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| Section | Weight | Objectives |
|---|---|---|
| Duct Systems | 12% | - Duct installation and supports - Dampers and access doors - Insulation and sealing - Duct construction and materials |
| Exhaust & Ventilation Systems | 20% | - Commercial kitchen exhaust systems - Hazardous and special exhaust systems - Makeup air systems - Ventilation rates and outdoor air requirements |
| Chimneys & Vents | 14% | - Vent systems and connections - Chimney construction and materials - Factory-built chimneys and vents - Clearances and termination requirements |
| Heating, Cooling & Water Heaters | 18% | - HVAC equipment installation and clearance - Solar thermal systems - Water heaters and storage tanks - Boilers and hydronic systems - Heat pumps and cooling equipment |
| General Administration | 18% | - Manufacturer's instructions and listings - Code authority and enforcement - Plan review and documentation - Permits and inspections |
| Fuel Supply Systems | 10% | - Piping testing and inspection - Fuel gas piping materials and installation - Gas appliances and connections - Pressure regulation and overpressure protection |
| Combustion Air | 8% | - Confined spaces and equipment rooms - Combustion air requirements - Air supply and venting |
>> International Code Council M2 Top Questions <<
These International Code Council M2 questions and Commercial Mechanical Inspector M2 practice test software that will aid in your preparation. All of these Commercial Mechanical Inspector M2 formats are developed by experts. And assist you in passing the Commercial Mechanical Inspector M2 Exam on the first try. M2 practice exam software containing International Code Council M2 practice tests for your practice and preparation.
NEW QUESTION # 16
Exposed solar thermal equipment protected by motor vehicle impact may be installed at what height?
Answer: D
Explanation:
The IMC states that solar thermal equipment exposed to vehicular traffic must be installed not less than 6 feet above the finished floor . It then gives an exception stating that this requirement does not apply where the equipment is protected from motor vehicle impact . Because the height requirement is removed by that exception, the best answer from the choices given is A, directly on finished floor . This is an inference from the exception language.
NEW QUESTION # 17
Given: Fabricated of type 430 stainless steel.

Optional type _____ stainless steel is available.
Answer: C
Explanation:
Based on the specification sheet shown in the exhibit, the hood is fabricated of Type 430 stainless steel , and the optional stainless steel listed is Type 304 . Therefore, the correct answer is C .
NEW QUESTION # 18
Pipe and duct insulation can be used within plenums except:
Answer: A
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 # 19
Which of the following is not a required mechanical inspection?
Answer: A
Explanation:
The ICC mechanical administrative inspection sequence includes underground inspection , rough-in inspection , and final inspection as required inspections. An annual system test is not listed as one of the required permit inspections in that section, so Option D is the correct answer. This fits the M2 General Administration content area, which includes permit and inspection administration.
NEW QUESTION # 20
The minimum dimension for rectangular air ducts used to supply combustion air for natural draft systems is
_____ inches.
Answer: A
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 # 21
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