[Q21-Q44] Free Sales Ending Soon – Use Real M2 PDF Questions [Sep 22, 2026]

Rate this post

Free Sales Ending Soon – Use Real M2 PDF Questions [Sep 22, 2026]

Updated Sep-2026 Exam M2 Dumps – Pass Your Certification Exam

International Code Council M2 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Chimneys & Vents	14%	– Factory-built chimneys and vents – Clearances and termination requirements – Chimney construction and materials – Vent systems and connections
Topic 2: Heating, Cooling & Water Heaters	18%	– Water heaters and storage tanks – Heat pumps and cooling equipment – Solar thermal systems – HVAC equipment installation and clearance – Boilers and hydronic systems
Topic 3: General Administration	18%	– Plan review and documentation – Manufacturer’s instructions and listings – Permits and inspections – Code authority and enforcement
Topic 4: Combustion Air	8%	– Air supply and venting – Combustion air requirements – Confined spaces and equipment rooms
Topic 5: Exhaust & Ventilation Systems	20%	– Commercial kitchen exhaust systems – Makeup air systems – Ventilation rates and outdoor air requirements – Hazardous and special exhaust systems
Topic 6: Fuel Supply Systems	10%	– Gas appliances and connections – Fuel gas piping materials and installation – Piping testing and inspection – Pressure regulation and overpressure protection
Topic 7: Duct Systems	12%	– Duct construction and materials – Insulation and sealing – Dampers and access doors – Duct installation and supports

Q21. 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.

Q22. What is the minimum distance required between a combustion air opening at the exterior of a building and a lot line?

2 feet

3 feet

8 feet

10 feet

The ICC opening-location rule requires intake openings to be located not less than 10 feet from lot lines or buildings on the same lot . A combustion-air opening taken from the exterior follows that minimum separation rule, so 10 feet is the correct answer. Therefore, Option D is correct.

Q23. 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.

Q24. 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.

Q25. Exposed solar thermal equipment protected by motor vehicle impact may be installed at what height?

Directly on finished floor

6 feet above finished floor

18 inches above finished floor

48 inches above finished floor

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.

Q26. Supports for hazardous exhaust duct shall be constructed of:

fibrous material.

material complying with UL 181.

plastic.

noncombustible material.

Q27. 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.

Q28. 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 .

Q29. 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.

Q30. 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.

Q31. 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.

Q32. 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.

Q33. Air mechanically exhausted from a room must be:

filtered.

recirculated.

discharged into the attic.

discharged to the outdoors.

The IMC requires air removed by a mechanical exhaust system to be discharged outdoors to an approved location and not be readily drawn back into the building. That makes D correct. The code does not permit general exhaust air to terminate in an attic, and it does not make filtering or recirculation the default rule for mechanically exhausted air.

Q34. 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.

100

150

200

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.

Q35. Horizontal terminations for mechanical draft systems that are adjacent to public walkways shall be located a minimum of _____ feet above grade.

The fuel gas venting provisions state that the exit terminals of mechanical draft systems shall be not less than
7 feet above grade where located adjacent to public walkways. Therefore, A is the correct answer.

Q36. What is the minimum air velocity that must be provided by an exhaust duct system serving a Type I range hood?

500 FPM

500 CFM

1,500 FPM

2,500 FPM

For commercial kitchen exhaust associated with Type I hood systems, the recognized code-based minimum duct transport velocity is 1,500 feet per minute , so C is the correct answer. Option B uses the wrong unit, and the other listed velocities do not match the code minimum used for this question type.

Q37. What is the maximum distance allowed below the design flood elevation from which ventilation may be obtained?

0 inches

6 inches

1 foot

2 feet

This question appears to contain a wording issue. In ICC flood-related provisions tied to ventilation/flood openings, the governing limit is that the opening location is not more than 1 foot relative to the reference grade condition used for flood-opening compliance. That corresponds to 1 foot , so Option C is the best- supported answer.

Q38. 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 .

Q39. 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 .

Q40. Exhibit:

What hp is EF-2?

1/2

1.5

Based on the equipment schedule shown in the exhibit, EF-2 is listed with a motor size of 1.5 horsepower .
Therefore, the correct answer is C .

Q41. 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.

Loading …

M2 Dumps To Pass Commercial Inspector Exam in One Day: https://www.pdf4test.com/M2-dump-torrent.html

Free certification test prep

[Q21-Q44] Free Sales Ending Soon – Use Real M2 PDF Questions [Sep 22, 2026]

International Code Council M2 Exam Syllabus Topics:

Leave a Reply Cancel reply