ICC F29 Master Mechanical Exam (2015 IMC/IFGC) Practice Exam
Free Practice Exam
Test your knowledge with 10 questions from our pool of 20 free questions.
- 10 questions per attempt
- 30 minute time limit
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Full Practice Exam
Complete exam simulation matching the real Pearson VUE test format.
- 100 questions (same as real exam)
- 240 minute time limit
- 10 topic areas covered
- 502 questions in pool
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ICC F29 Master Mechanical (2015 IMC/IFGC) Practice Exam Guide
What's on the exam
Questions per topic, out of 100This practice exam is built around the official content outline for the ICC F29 Master Mechanical (2015 IMC/IFGC) exam: General Requirements and Plan Reading, Appliances and Equipment, Exhaust and Ventilation Systems, Duct Systems, Combustion Air, Chimneys and Vents, Fuel Supply Systems, Special Requirements, Electrical, Water.
There are two ways to practice. The free practice exam gives you 10 questions per attempt, and you can take it as many times as you like. The full practice exam gives you 100 questions on a 4 hours clock, with a new draw from our question bank each time.
General Requirements and Plan Reading 32 items
Our study plan for this topic: Permit requirements and exemptions; Construction document submission and approval; Code official authority and enforcement; Inspection types and procedures (underground, rough-in, final); Applicability to existing systems, alterations, and repairs; Key IMC definitions and terminology; General installation requirements for equipment and appliances; Access and service space requirements for appliances.
Appliances and Equipment 12 items
Our study plan for this topic: Installation requirements and listing standards for gas-fired heating appliances (wall furnaces, floor furnaces, duct furnaces, unit heaters, forced-air furnaces); Clearances to combustible materials for specific appliances; Unvented room heaters — prohibited locations, input limits, and oxygen-depletion safety shutoff requirements; Clothes dryer exhaust systems — duct material, maximum length, termination, and transition duct requirements; Boiler installation — standards, clearances, safety/relief valves, low-water cutoffs, and gauges; Decorative appliances and gas fireplaces — flame safeguard devices, chimney damper free-opening area, and prohibited installations; Cooking appliances — domestic vs. commercial distinctions, vertical clearance above cooking top, and prohibited locations; Cooling towers, evaporative condensers, and pressure vessels — installation, safety relief devices, and ASME code compliance.
Exhaust and Ventilation Systems 10 items
Our study plan for this topic: Exhaust discharge location requirements and minimum separation distances; Commercial kitchen Type I and Type II hood systems; Clothes dryer exhaust duct installation and maximum duct length; Hazardous exhaust systems for flammable vapors, dusts, and toxic materials; Makeup air requirements for exhaust systems; Smoke control system design and operation; Mechanical ventilation outdoor airflow rates by occupancy type; Energy recovery ventilation system requirements and prohibited applications.
Duct Systems 13 items
Our study plan for this topic: Duct construction materials and minimum metal thickness requirements; Duct classification by operating pressure; Flexible air ducts and flexible air connectors (length limits, installation, UL 181 compliance); Joints, seams, and connections sealing methods and standards; Plenum construction, materials, and flame/smoke index requirements; Fire dampers, smoke dampers, and combination dampers (ratings, actuation, and required locations); Duct insulation, vapor retarders, and coverings requirements; Return air opening restrictions and smoke detection system controls for air distribution systems.
Combustion Air 8 items
Our study plan for this topic: Indoor combustion air volume requirements (standard method and known air-infiltration-rate method); Outdoor combustion air openings: two-permanent-openings method sizing and placement; Outdoor combustion air openings: one-permanent-opening method sizing and placement; Combination indoor and outdoor combustion air sizing calculations; Mechanical combustion air supply systems and appliance interlock requirements; Louvers, grilles, and screens: free area calculations and motorized louver interlock requirements; Combustion air duct construction, termination, and installation requirements; Scope limitations: solid-fuel and oil-fired appliances, direct-vent appliances, and dampered openings under IMC Chapter 7.
Chimneys and Vents 9 items
Our study plan for this topic: Vent system types and applications (Type B, BW, L, single-wall metal pipe, special gas vent); Chimney and vent sizing methods for Category I appliances using tables and engineering methods; Vent connector materials, construction requirements, and clearances to combustibles; Chimney and vent termination locations and heights; Draft hoods, draft controls, and mechanical draft systems; Factory-built chimney listing, installation, and offset requirements; Flue lining systems for masonry chimneys (clay tile, listed liner systems); Appliances not required to be vented and unvented appliance aggregate input limits.
Fuel Supply Systems 9 items
Our study plan for this topic: Gas pipe sizing methods and sizing tables (longest length, branch length, hybrid pressure); Allowable pressure drop and maximum design operating pressure limits; Approved piping materials and tubing types (steel, copper, CSST, polyethylene, aluminum); Piping joints, fittings, and connection methods for gas systems; Piping installation requirements (burial depth, prohibited locations, protection against damage and corrosion); Pressure testing, inspection, leak detection, and purging procedures for gas piping; Shutoff valves, pressure regulators, and overpressure protection devices; Fuel oil piping materials, joints, valves, fill/vent piping, and system testing.
Special Requirements 4 items
Our study plan for this topic: Refrigeration machinery room general and special requirements (Sections 1105–1106); Refrigerant classification, occupancy classification, and maximum allowable quantities (Table 1103.1); Refrigeration system classification and application requirements (high-probability vs. low-probability systems); Refrigerant piping materials, joints, location restrictions, and stop valve requirements (Section 1107); Refrigeration field pressure testing and certification requirements (Section 1108); Solar system special requirements: pressure/temperature relief, freeze protection, heat transfer fluid flash point, and roof-mounted collector construction (Sections 1402–1403); Refrigeration; Hydronic Piping.
Electrical 1 item
Our study plan for this topic: Electrical wiring, controls, and connections compliance with NFPA 70; Label information requirements for electrical equipment and appliances (voltage, amperage, motor phase); Electrical receptacle outlet and luminaire requirements for appliances in attics and underfloor spaces; Electrical receptacle outlet requirements for rooftop equipment locations.
Water 2 items
Our study plan for this topic: Hydronic piping material standards and ratings (Table 1202.4); Pipe fitting and valve material compatibility requirements; Joint types and installation methods by pipe material; Shutoff valve placement requirements in hydronic systems; Hydrostatic testing requirements for hydronic systems; Embedded piping installation and pressure testing (radiant panels); Thermal barrier and insulation requirements for radiant floor systems; Ground-source heat pump loop system piping, joints, and testing.
Sample 1 — General Requirements and Plan Reading
Question: A reduced-clearance protective assembly, including its structural and support elements and spacers, must be constructed of noncombustible materials. A material qualifies as noncombustible based on testing in accordance with which standard?
- A. ASTM E 136
- B. UL 723
- C. ASTM D 93
- D. ASTM E 84
Correct Answer: A
IMC 2015 Section 202 defines 'Noncombustible Materials' by testing in accordance with ASTM E 136, including the criterion that there shall not be flaming from the specimen after the first 30 seconds. ASTM E 84 and UL 723 are used for flame spread/smoke-developed indices, and ASTM D 93 is a flash point test method.
Reference: IMC 2015 Section 202 (Noncombustible Materials); Section 308.3
Sample 2 — Duct Systems
Question: A journeyman is sizing the return and transfer openings for a residential forced-air system. Absent the equipment manufacturer's instructions or a design by a registered design professional, the openings must be sized in accordance with which ACCA manual?
- A. Manual S
- B. Manual D
- C. Manual J
- D. Manual T
Correct Answer: B
Per 2015 IMC Section 601.5, Item 4, return and transfer openings shall be sized in accordance with the appliance or equipment manufacturer's installation instructions, ACCA Manual D, or the design of the registered design professional.
Reference: IMC 2015 Section 601.5
Sample 3 — Appliances and Equipment
Question: A combination system supplies potable hot water and also provides hot water for space heating at a temperature higher than 140°F. A temperature-actuated mixing valve must temper the water supplied to the potable hot water distribution system to a maximum of:
- A. 120°F
- B. 140°F
- C. 110°F
- D. 130°F
Correct Answer: B
IMC 2015, Section 1002.2.2 requires that where a combination potable water-heating and space-heating system needs water for space heating above 140°F, a temperature-actuated mixing valve conforming to ASSE 1017 must temper the water delivered to the potable hot water distribution system to 140°F (60°C) or less.
Reference: IMC 2015 Section 1002.2.2
Your first score is just a starting point. After every attempt, the results page shows how you did on each outline topic, so you can see what to work on next. Compare your score with the real exam's passing score, a minimum score of 70, and keep at it until you pass consistently.
- Start with the questions you know. Go through the whole exam once and bookmark anything you're unsure about. Our practice exams let you bookmark and come back.
- Circle back to your bookmarks on the second pass.
- Keep an eye on your pace. The real exam works out to about 2 minutes 24 seconds per question.
- Turn every miss into a lesson. After each attempt, look up each missed question's reference in your book and read the section.
| Questions | 100 questions |
| Time limit | 4 hours |
| Passing score | a minimum score of 70 |
| Books in the exam room | Open book |
| Exam fee | $120 |
- Results for examinations taken electronically are available immediately after the examination is completed.
- You must wait 10 days before retaking a failed exam.
Source: National Contractor/Trades Examination Information Bulletin, PUBLISHED June 30, 2026. Check the bulletin before test day: fees and rules can change.