Prepare Top International Code Council M2 Exam Study Guide Practice Questions Edition [Q18-Q36]

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Prepare Top International Code Council M2 Exam Study Guide Practice Questions Edition

Go to M2 Questions – Try M2 dumps pdf

International Code Council M2 Exam Syllabus Topics:

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

NEW QUESTION 18
When a permit is issued, the code requires that one set of approved plans and specifications be returned to the applicant.
This set of plans and specifications shall be:

kept on the building site.

returned to the architect.

filed with the county clerk or jurisdiction to properly record the property.

retained by the applicant for at least one year after the job is finished in the event modifications are made.

Under the ICC administrative provisions used with the mechanical code, one approved set is retained by the code official, and one approved set is returned to the applicant. The returned set must be kept on the site of the building or job while the authorized work is in progress. That directly matches Option A . It does not require return to the architect, filing with the county clerk, or retention for one year after completion.

NEW QUESTION 19
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.

NEW QUESTION 20
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.

NEW QUESTION 21
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

NEW QUESTION 22
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.

NEW QUESTION 23
Infrared radiant heaters shall be installed:

in accordance with UL 2158.

in accordance with UL 1240.

with a 6-ft. clearance on all sides.

with clearances from combustible material in accordance with the manufacturer’s installation instructions.

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 24
Supports for hazardous exhaust duct shall be constructed of:

fibrous material.

material complying with UL 181.

plastic.

noncombustible material.

NEW QUESTION 25
Exhaust is required for which of the following areas?

Gambling casinos

Office break rooms

High school locker rooms

Prison guard stations

Under the IMC ventilation table, locker/dressing rooms and sports locker rooms are identified with required mechanical exhaust, while spaces such as guard stations do not carry that same exhaust requirement in the table. A high school locker room falls within the locker-room/sports-locker-room category, so Option C is the correct answer. Gambling casinos and office break rooms are provided outdoor air rates, but they are not the required-exhaust space among these listed choices.

NEW QUESTION 26
A low-pressure steam heating boiler is a boiler furnishing a maximum steam pressure of _____ psi.

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

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 27
All exposed gas piping shall be kept above grade a minimum of _____ inches.

3.5

8.5

The IFGC rule for above-ground outdoor piping requires piping installed outdoors to be elevated not less than 3 1/2 inches above ground , and where installed across roof surfaces, not less than 3 1/2 inches above the roof surface . Therefore, the correct answer is A .

NEW QUESTION 28
Floor furnaces shall not be closer than _____ inches to the ground.

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

The ICC mechanical code requires the lowest portion of a floor furnace to have not less than 6 inches (152 mm) clearance from grade level . Therefore, the correct choice is the option corresponding to 6 inches , which is C based on your answer set.

NEW QUESTION 29
For the installation of listed fuel-burning appliances, the required clearances should be found:

in the mechanical code.

on the nameplate of the appliance.

on the approved plans and specifications for the building.

by using a calculation based on the Btu/h output rating of the appliance.

The IMC requires fuel-burning units to be marked with the hourly rating, approved fuel type, and required clearances . That means the appliance marking/nameplate is the direct source for the required clearance information for listed fuel-burning appliances. This is why B is the correct answer.

NEW QUESTION 30
A cooling system with a condensate disposal system:

shall be made of approved corrosion-resistant material and shall not decrease in size from the drain pan connection to the place of condensate disposal.

shall be made of an approved pipe and be at least 1/2-inch in diameter.

shall not be less than 3/4-inch PVC pipe or equivalent approved material.

shall have all horizontal sections of drain piping installed with a minimum of 1/4 inch per foot slope.

The ICC mechanical code requires condensate disposal components to be of approved corrosion-resistant material , and the drain line shall not decrease in size from the drain pan connection to the place of disposal.
The code minimum size is 3/4 inch , so the 1/2-inch statement is incorrect, and the code is not limited to PVC only. Also, the slope requirement for horizontal drain piping is not less than 1/8 inch per foot , not 1/4 inch per foot. That makes Option A the only fully correct statement.

NEW QUESTION 31
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.

NEW QUESTION 32
Supports for hazardous exhaust duct shall be constructed of:

plastic.

fibrous material.

noncombustible material.

material complying with UL 181.

Hazardous exhaust systems are regulated under the IMC provisions for special exhaust because they handle potentially dangerous fumes, vapors, dusts, or other contaminants. The code requires the duct system and its support components to be suitable for that hazard level, and supports for hazardous exhaust duct must be constructed of noncombustible material . That is why Option C is correct. Plastic and fibrous supports would not satisfy the required fire and safety performance, and UL 181 applies to certain factory-made air ducts and connectors, not as the governing support-material rule for hazardous exhaust duct supports.

NEW QUESTION 33
Ducts shall not be permitted to be connected to:

an evaporative cooler.

a vented wall furnace.

a gravity-type warm-air furnace.

a high-static-pressure-type unit heater.

The IMC appliance provisions prohibit duct connection to a vented wall furnace . That makes Option B correct. The exam tests recognition of appliance-specific distribution restrictions rather than general duct rules.

NEW QUESTION 34
Given: The listed clearance is 12 inches.

What would be the reduced clearance to combustibles, in inches, if the millboard is replaced with 24-gauge sheet metal?

For a clearance-reduction system using 24-gauge sheet metal with a ventilated 1-inch air space , the recognized reduction method brings a 12-inch listed clearance down to 4 inches . That matches Option B .
This is also consistent with the protection method shown in the exhibit.

NEW QUESTION 35
ERV systems shall not be installed in which of the following except:

systems utilizing coil-type exchangers.

common exhaust systems for clothes dryers.

exhaust systems emitting corrosive materials.

equipment designed to assist in the evacuation of occupants.

The IMC prohibits energy recovery ventilation systems in several applications, including hazardous exhaust systems , smoke control systems , commercial kitchen exhaust systems , and clothes dryer exhaust systems . Equipment intended to assist with occupant evacuation falls under smoke-control/life-safety type applications and is not an allowed ERV use. By contrast, systems utilizing coil-type exchangers are the exception among the listed choices because they are not one of the prohibited applications in this question.
Therefore, Option A is correct.

NEW QUESTION 36
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 .

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