Authentic M2 Dumps – Free PDF Questions to Pass [Q13-Q31]

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Authentic M2 Dumps – Free PDF Questions to Pass

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International Code Council M2 Exam Syllabus Topics:

Section	Objectives
Topic 1: General Administration and Mechanical Inspection Practice	– Code enforcement procedures and inspector responsibilities 1. Documentation and reporting 2. Permit requirements and inspections
Topic 2: Fuel Gas Systems	– Gas piping and appliance installation 1. Gas safety and testing 2. Combustion air requirements
Topic 3: HVAC Systems and Equipment	– Heating and cooling systems 1. Duct systems design and installation 2. Air handling units and system components
Topic 4: Ventilation and Indoor Air Quality	– Ventilation requirements 1. Exhaust systems 2. Outdoor air intake requirements
Topic 5: Mechanical Code (IMC) Fundamentals	– International Mechanical Code application 1. Scope and definitions 2. General regulations
Topic 6: Mechanical Appliances and Equipment	– Boilers, furnaces, and water heaters 1. Safety controls and venting 2. Installation and inspection requirements

QUESTION 13
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.

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.

QUESTION 14
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.

250

400

800

1250

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 ÷ 1,000 = 200
200 × 4 = 800 cfm
So the correct answer is C

QUESTION 15
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?

kitchen exhaust that penetrates the shaft without a fire damper and extends vertically 12 inches.

fire dampers are installed that are connected to an emergency generator rated for 1 hour.

have steel subducts with wall thickness of 0.0186 inch extending 22 inches horizontally into the shaft.

kitchen exhaust that penetrates the shaft without a fire damper and extends vertically 22 inches.

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 .

QUESTION 16
Exhibit:

CEF-5 is a ceiling exhaust fan manufactured by:

G.E.

Carnes

Markel

Nutone

This is also an exhibit-reading question. From the equipment schedule in the image, CEF-5 is listed as a Nutone unit, so Option D is correct. This falls under reading commercial mechanical drawings and equipment schedules related to exhaust/ventilation components.

QUESTION 17
Indoor combustion air shall be provided within:

2 feet of the ceiling and 2 feet of the floor.

1 foot of the ceiling and 2 feet of the floor.

1 foot of the ceiling and 1 foot of the floor.

2 feet of the ceiling and 1 foot of the floor.

QUESTION 18
For gas piping installations, which of the following is an acceptable joining method for polyethylene (PE) pipe?

Rubber cement

Solvent cement

Threaded coupling

Compression coupling

This item appears to use older or simplified exam wording . Current ICC language for polyethylene plastic piping identifies heat-fusion joints, electrofusion joints, and stab-type insert fittings as the named PE joining methods, not solvent cement or threaded couplings. Among the answer choices you provided, D.
Compression coupling is the only choice that aligns most closely with a mechanical fitting/joining approach for PE systems, while rubber cement, solvent cement, and threaded coupling do not match ICC PE joining practice. Because of that, D is the best answer from the listed options, but this question should be tied to the exact code cycle or source exam bank if you want absolute cycle-specific certainty

QUESTION 19
The minimum size for access openings for fire dampers shall be:

the same as the dimension of the duct.

one-half the diagonal of the access opening.

adequate to permit maintenance and resetting of the damper.

12 inches by 12 inches.

The IMC requires access openings for fire dampers to be of a size that allows maintenance and resetting of the damper . The code does not set the answer as same-as-duct, half-diagonal, or a universal 12-inch by 12- inch opening. So Option C is correct.

QUESTION 20
The minimum rise required for a 10-foot run of vent connector is _____ inches.

1-1/4

1-1/2

2-1/2

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 × 1/4 inch = 2.5 inches .
That equals 2-1/2 inches , so Option D is correct.

QUESTION 21
The minimum dimension for rectangular air ducts used to supply combustion air for natural draft systems is
_____ inches.

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.

QUESTION 22
What type of cooking appliance is required to have its own independent hood and exhaust system?

Light-duty

Medium-duty

Heavy-duty

Extra-heavy-duty

The IMC specifically provides that Type I hoods used over extra-heavy-duty cooking appliances shall not cover other appliances requiring fire-extinguishing protection and shall discharge to an independent exhaust system . Therefore, D is correct.

QUESTION 23
Where located on a roof with a 5:12 slope, a level platform shall be provided along the access panel of the furnace at least _____ inches wide.

[option text not fully visible in the material you sent]

For appliances on roofs, ICC access provisions require a level platform at the appliance. The platform must be not less than 30 inches in any dimension . For the choices provided, that makes 30 inches the correct answer, which is Option C .

QUESTION 24
An equipment shutoff valve shall be in the same room and not more than how many feet away from the appliance?

The IFGC requires the appliance shutoff valve to be located in the same room as the appliance and within
6 feet of the appliance . Therefore, the correct answer is A .

QUESTION 25
Supports for hazardous exhaust duct shall be constructed of:

fibrous material.

material complying with UL 181.

plastic.

noncombustible material.

QUESTION 26
An 8-inch Type B venting system with a listed vent cap must terminate a minimum of _____ feet above the flat roof through which it passes.

For a Type B gas vent with a listed vent cap terminating through a flat roof , the minimum required termination height is 1 foot above the roof . That makes Option A correct. This is consistent with gas vent termination tables used with listed Type B vent systems and the code framework for Type B vent terminations.

QUESTION 27
Shutoff valves in plastic pipe ground-source heat pump loop systems shall be installed on both sides of which one of the following?

Expansion tanks

Heat-fusion joints

Change-in-material joints

Pressure-reducing valves

In the IMC hydronic piping provisions for ground-source heat pump loop systems, shutoff valves are required on both sides of a pressure-reducing valve . That matches D . Heat-fusion joints and change-in-material joints do not trigger this two-sided shutoff-valve requirement.

QUESTION 28
The exhibit shows a _____ in. diameter gas line between unit heaters 5 and 8.

3/4

1-1/8

1-1/4

Based on the mechanical plan shown in the exhibit, the gas line between unit heaters 5 and 8 is labeled as 1 inch in diameter. Therefore, the correct answer is B.

QUESTION 29
Solid-fuel cooking equipment:

shall be vented through a separate hood and exhaust system.

is permitted to be installed under Type II canopy-type hoods.

is permitted to be installed under Type II noncanopy-type hoods.

is permitted to be installed under common canopy-type hoods with other cooking equipment.

Solid-fuel cooking equipment requires a separate hood and exhaust system . It is not permitted to share the same hood/exhaust arrangement in the manner suggested by the other choices. This is a standard commercial kitchen exhaust requirement because of the added fire and residue hazards associated with solid-fuel appliances.

QUESTION 30
The optional integral clearance reduction system is designed to meet which NFPA standard?

92A

Based on the specification sheet shown in the exhibit, the design features state that the optional integral clearance reduction system meets the requirements of NFPA 96 . Therefore, the correct answer is D .

QUESTION 31
Given: An industrial water heater boiler has a manufacturer’s listing of 18 inches wall clearance. It is installed with a protective wall assembly of 24-gauge sheet metal spaced out 1 inch from the wall.
The reduced installation clearance from the wall for this appliance is _____ inches.

[option text not fully visible in the material you sent]

ICC clearance-reduction tables allow a listed clearance of 18 inches to be reduced to 9 inches where 24- gauge sheet metal is installed with a 1-inch ventilated airspace from the combustible wall. Therefore the correct answer is the option corresponding to 9 inches , which is B in your set.

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