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International Code Council M2 : Commercial Mechanical Inspector
- Exam Code: M2
- Exam Name: Commercial Mechanical Inspector
- Updated: Oct 09, 2026 Q&As: 52 Questions and Answers
About International Code Council M2 Exam
A company's reputation is built one satisfied candidate at a time. In 2026, DumpsTests keeps earning trust for the M2 exam through quality materials and straightforward terms — 52 practice questions, no fine print.
International Code Council M2 Exam Overview:
| Certification Vendor: | International Code Council |
|---|---|
| Exam Name: | Commercial Mechanical Inspector |
| Exam Number: | M2 |
| Available Languages: | English |
| Real Exam Qty: | 50 |
| Related Certifications: | M8 Mechanical Code Specialist M5 Mechanical Inspector C5 Commercial Combination Inspector |
| Exam Price: | $320 USD |
| Exam Duration: | 120 minutes |
| Certificate Validity Period: | 3 years |
| Exam Format: | Multiple Choice, Open Book |
| Sample Questions: |  |
| Exam Way: | Online proctored or test center examination |
| Pre Condition: | Construction or inspection experience is recommended but not required. |
| Official Syllabus URL: | https://shop.iccsafe.org/commercial-mechanical-inspector.html |
International Code Council M2 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Heating and Cooling Systems | - Cooling Systems
|
| Chimneys and Vents | - Connectors and Terminations
|
| Combustion Air and Fuel Supply | - Combustion Air
|
| Hydronic Piping and Refrigeration | - Hydronic Systems
|
| General Administration | - Code Scope and Administration
|
| Ventilation and Exhaust Systems | - Ventilation
|
| Duct Systems | - Duct Construction
|
| Materials and Specifications | - Approved Materials
|
International Code Council Commercial Mechanical Inspector Exam: Questions Worth Your Time
Scoring and fees are published by International Code Council and may change; verify the current figures on the official site.
DumpsTests issues a full refund if you take the International Code Council Commercial Mechanical Inspector exam within 60 days of purchase and do not pass. The policy does not apply if the exam is taken within 3 days of purchase, if the exam was never actually taken, or to free materials or expired orders, and the candidate name must match the payer name. Submit a scan of your enrollment slip and the official Score Report PDF within 2 days of the exam; claims are processed within 7 days. Alternatively, exchange for two free exam products of equal value and keep your original update service. Orders arrive by email within 1 minute — contact support if nothing arrives within 2 hours.
International Code Council recommends these training resources for the International Code Council Commercial Mechanical Inspector exam:
Follow the training with steady self-testing — the 52 practice questions from DumpsTests help you apply theory and fill any gaps the training leaves.
The M2 exam is a International Code Council certification exam validating the International Code Council Commercial Mechanical Inspector syllabus shown above. It belongs to these credential paths: M5 Mechanical Inspector, C5 Commercial Combination Inspector, M8 Mechanical Code Specialist. Candidates in 2026 start with DumpsTests's 52 practice questions, available as a printable PDF, a Windows Desktop Test Engine, and an Online Test Engine — three versions of the same materials.
Construction or inspection experience is recommended but not required. Since requirements change over time, confirm the latest on the official International Code Council exam page before scheduling.
Three versions of the same study materials: a printable, expert-prepared PDF with free demo download and instant access; a Desktop Test Engine for Windows with customizable simulation and timed modes that works offline; and an Online Test Engine for any browser on Windows, Mac, Android, and iOS with test history and performance review. All 52 practice questions are identical across versions. Every purchase includes 365 days of free updates, a 50% renewal discount afterward, and unlimited computer installations.
The official International Code Council Commercial Mechanical Inspector outline defines 8 domains. The leading three are Duct Systems, Ventilation and Exhaust Systems, and Hydronic Piping and Refrigeration. The full list is in the topics section above, and DumpsTests's 52 practice questions cover each one.
The International Code Council Commercial Mechanical Inspector exam contains 50 to complete within 120 minutes. Timed simulation in the DumpsTests Desktop Test Engine teaches that rhythm before exam day does.
Online proctored or test center examination Register for the International Code Council Commercial Mechanical Inspector exam through these official channels:
After booking, DumpsTests delivers your practice questions within 1 minute — preparation starts the same day.
International Code Council Commercial Mechanical Inspector Sample Questions:
Question #1
Natural, manufactured and liquefied petroleum, or a mixture of these, make up:
- A. fuel oil.
- B. liquefied petroleum gas.
- C. fuel gas.
- D. natural gas.
Correct Answer: C 🗳️
Explanation: Only visible for DumpsTests members. You can sign-up / login (it's free).
Question #2
Infrared radiant heaters shall be installed:
- A. in accordance with UL 1240.
- B. with a 6-ft. clearance on all sides.
- C. with clearances from combustible material in accordance with the manufacturer's installation instructions.
- D. in accordance with UL 2158.
Correct Answer: C 🗳️
Explanation: Only visible for DumpsTests members. You can sign-up / login (it's free).
Question #3
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.
- A. 1250
- B. 250
- C. 800
- D. 400
Correct Answer: C 🗳️
Explanation: Only visible for DumpsTests members. You can sign-up / login (it's free).
Question #4
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.
- A. 15
- B. 10
- C. 50
- D. 20
Correct Answer: D 🗳️
Explanation: Only visible for DumpsTests members. You can sign-up / login (it's free).
Question #5
Shutoff valves in plastic pipe ground-source heat pump loop systems shall be installed on both sides of which one of the following?
- A. Expansion tanks
- B. Heat-fusion joints
- C. Pressure-reducing valves
- D. Change-in-material joints
Correct Answer: C 🗳️
Explanation: Only visible for DumpsTests members. You can sign-up / login (it's free).
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