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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Combustion Air | 8% | - Combustion air requirements - Confined spaces and equipment rooms - Air supply and venting |
| Topic 2: Heating, Cooling & Water Heaters | 18% | - Water heaters and storage tanks - Boilers and hydronic systems - Heat pumps and cooling equipment - HVAC equipment installation and clearance - Solar thermal systems |
| Topic 3: General Administration | 18% | - Plan review and documentation - Code authority and enforcement - Manufacturer's instructions and listings - Permits and inspections |
| Topic 4: Duct Systems | 12% | - Duct construction and materials - Insulation and sealing - Duct installation and supports - Dampers and access doors |
| Topic 5: Exhaust & Ventilation Systems | 20% | - Ventilation rates and outdoor air requirements - Hazardous and special exhaust systems - Commercial kitchen exhaust systems - Makeup air systems |
| Topic 6: Chimneys & Vents | 14% | - Factory-built chimneys and vents - Vent systems and connections - Chimney construction and materials - Clearances and termination requirements |
| Topic 7: Fuel Supply Systems | 10% | - Piping testing and inspection - Gas appliances and connections - Fuel gas piping materials and installation - Pressure regulation and overpressure protection |
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NEW QUESTION # 34
A cooling system with a condensate disposal system:
Answer: B
Explanation:
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 # 35
Supports for hazardous exhaust duct shall be constructed of:
Answer: D
Explanation:
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 # 36
Air mechanically exhausted from a room must be:
Answer: A
Explanation:
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.
NEW QUESTION # 37
Termination of vents for appliances listed for and installed outdoors that incorporate integral venting shall:
Answer: C
Explanation:
For appliances listed for outdoor installation and incorporating integral venting , the IMC requires them to be installed in accordance with their listings and the manufacturer's installation instructions . That matches Option C exactly.
NEW QUESTION # 38
Exhibit:
CEF-5 is a ceiling exhaust fan manufactured by:
Answer: A
Explanation:
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.
NEW QUESTION # 39
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