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International Code Council M2 Exam Overview:
| Certification Vendor: | International Code Council |
|---|---|
| Exam Name: | Commercial Mechanical Inspector |
| Exam Number: | M2 |
| Related Certifications: | M8 Mechanical Code Specialist M5 Mechanical Inspector C5 Commercial Combination Inspector |
| Exam Format: | Multiple Choice, Open Book |
| Exam Price: | $320 USD |
| Exam Duration: | 120 minutes |
| Available Languages: | English |
| Certificate Validity Period: | 3 years |
| Real Exam Qty: | 50 |
| 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 |
|---|---|
| Materials and Specifications | - Approved Materials
|
| General Administration | - Code Scope and Administration
|
| Duct Systems | - Air Distribution
|
| Hydronic Piping and Refrigeration | - Hydronic Systems
|
| Ventilation and Exhaust Systems | - Ventilation
|
| Combustion Air and Fuel Supply | - Fuel Supply Systems
|
| Heating and Cooling Systems | - Cooling Systems
|
| Chimneys and Vents | - Connectors and Terminations
|
International Code Council Commercial Mechanical Inspector Exam FAQ — Smart Answers
The International Code Council Commercial Mechanical Inspector is International Code Council's certification exam for Commercial Inspector, at the Professional level. It validates skills employers hire for, which is why it can affect your career and future. Related credentials include M5 Mechanical Inspector, C5 Commercial Combination Inspector, M8 Mechanical Code Specialist.
Files arrive by automatic email within a minute of payment — unlimited installations, and 24/7 customer assisting for any login or downloading issues if nothing shows up within 2 hours. If you fail the corresponding M2 exam within 60 days of purchase, you have options: a full refund (send a scanned enrollment slip plus the official Score Report PDF within 2 days of the exam; processed within 7 days), waiting for the next updated version free, or changing to two other equal-value dumps free. Excluded: exams within 3 days of purchase, candidate names that don't match the payer, and free or expired products.
Construction or inspection experience is recommended but not required. Vendors revise eligibility rules from time to time, so verify the current requirements on the official page (official M2 exam page) before booking.
The International Code Council Commercial Mechanical Inspector blueprint covers 8 domains — including Materials and Specifications, Hydronic Piping and Refrigeration, Heating and Cooling Systems. The weightings tell you where to spend your hours; the complete outline above lists every subtopic.
120 minutes for 50 questions. Efficient preparation includes pacing: rehearse timed sets until the clock feels manageable, not menacing.
Yes — download the free International Code Council Commercial Mechanical Inspector demo and judge the quality before paying. Purchases include 365 days of free updates, with each latest version emailed to you immediately; renew afterward at 50% off.
International Code Council Commercial Mechanical Inspector Sample Questions:
Ducts shall not be permitted to be connected to:
- A. an evaporative cooler.
- B. a high-static-pressure-type unit heater.
- C. a gravity-type warm-air furnace.
- D. a vented wall furnace.
Correct Answer: D 🗳️
Explanation: Only visible for CertkingdomPDF members. You can sign-up / login (it's free).
Which of the following is not a required mechanical inspection?
- A. Rough-in
- B. Final
- C. Annual system test
- D. Underground
Correct Answer: C 🗳️
Explanation: Only visible for CertkingdomPDF members. You can sign-up / login (it's free).
What is the minimum air velocity that must be provided by an exhaust duct system serving a Type I range hood?
- A. 1,500 FPM
- B. 500 FPM
- C. 2,500 FPM
- D. 500 CFM
Correct Answer: A 🗳️
Explanation: Only visible for CertkingdomPDF members. You can sign-up / login (it's free).
Horizontal terminations for mechanical draft systems that are adjacent to public walkways shall be located a minimum of _____ feet above grade.
- A. 10
- B. 9
- C. 7
- D. 8
Correct Answer: C 🗳️
Explanation: Only visible for CertkingdomPDF members. You can sign-up / login (it's free).
Supports for hazardous exhaust duct shall be constructed of:
- A. material complying with UL 181.
- B. noncombustible material.
- C. fibrous material.
- D. plastic.
Correct Answer: B 🗳️
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