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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Chimneys & Vents | 14% | - Chimney construction and materials - Vent systems and connections - Factory-built chimneys and vents - Clearances and termination requirements |
| Topic 2: General Administration | 18% | - Manufacturer's instructions and listings - Code authority and enforcement - Plan review and documentation - Permits and inspections |
| Topic 3: Heating, Cooling & Water Heaters | 18% | - Boilers and hydronic systems - Water heaters and storage tanks - Heat pumps and cooling equipment - Solar thermal systems - HVAC equipment installation and clearance |
| Topic 4: Combustion Air | 8% | - Confined spaces and equipment rooms - Combustion air requirements - Air supply and venting |
| Topic 5: Duct Systems | 12% | - Insulation and sealing - Dampers and access doors - Duct construction and materials - Duct installation and supports |
| Topic 6: Fuel Supply Systems | 10% | - Piping testing and inspection - Fuel gas piping materials and installation - Gas appliances and connections - Pressure regulation and overpressure protection |
| Topic 7: Exhaust & Ventilation Systems | 20% | - Ventilation rates and outdoor air requirements - Hazardous and special exhaust systems - Commercial kitchen exhaust systems - Makeup air systems |
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NEW QUESTION # 13
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 # 14
A low-pressure steam heating boiler is a boiler furnishing a maximum steam pressure of _____ psi.
Answer: C
Explanation:
A low-pressure steam heating boiler is defined as a boiler furnishing steam at pressures not exceeding 15 psi . That matches Option B .
NEW QUESTION # 15
The exhibit shows a _____ in. diameter gas line between unit heaters 5 and 8.
Answer: D
Explanation:
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.
NEW QUESTION # 16
The optional integral clearance reduction system is designed to meet which NFPA standard?
Answer: D
Explanation:
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 .
NEW QUESTION # 17
When a permit is issued, the code requires that one set of approved plans and specifications be returned to the applicant.
This set of plans and specifications shall be:
Answer: D
Explanation:
Under the ICC administrative provisions used with the mechanical code, one approved set is retained by the code official, and one approved set is returned to the applicant. The returned set must be kept on the site of the building or job while the authorized work is in progress. That directly matches Option A . It does not require return to the architect, filing with the county clerk, or retention for one year after completion.
NEW QUESTION # 18
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