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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Chimneys & Vents | 14% | - Factory-built chimneys and vents - Clearances and termination requirements - Vent systems and connections - Chimney construction and materials |
| Topic 2: Combustion Air | 8% | - Air supply and venting - Confined spaces and equipment rooms - Combustion air requirements |
| Topic 3: General Administration | 18% | - Manufacturer's instructions and listings - Code authority and enforcement - Permits and inspections - Plan review and documentation |
| Topic 4: Fuel Supply Systems | 10% | - Pressure regulation and overpressure protection - Fuel gas piping materials and installation - Piping testing and inspection - Gas appliances and connections |
| Topic 5: Heating, Cooling & Water Heaters | 18% | - Boilers and hydronic systems - Heat pumps and cooling equipment - Solar thermal systems - Water heaters and storage tanks - HVAC equipment installation and clearance |
| Topic 6: Exhaust & Ventilation Systems | 20% | - Hazardous and special exhaust systems - Makeup air systems - Commercial kitchen exhaust systems - Ventilation rates and outdoor air requirements |
| Topic 7: Duct Systems | 12% | - Duct installation and supports - Insulation and sealing - Duct construction and materials - Dampers and access doors |
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NEW QUESTION # 40
Supports for hazardous exhaust duct shall be constructed of:
Answer: B
NEW QUESTION # 41
Horizontal terminations for mechanical draft systems that are adjacent to public walkways shall be located a minimum of _____ feet above grade.
Answer: C
Explanation:
The fuel gas venting provisions state that the exit terminals of mechanical draft systems shall be not less than
7 feet above grade where located adjacent to public walkways. Therefore, A is the correct answer.
NEW QUESTION # 42
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 # 43
For gas piping installations, which of the following is an acceptable joining method for polyethylene (PE) pipe?
Answer: C
Explanation:
This item appears to use older or simplified exam wording . Current ICC language for polyethylene plastic piping identifies heat-fusion joints, electrofusion joints, and stab-type insert fittings as the named PE joining methods, not solvent cement or threaded couplings. Among the answer choices you provided, D.
Compression coupling is the only choice that aligns most closely with a mechanical fitting/joining approach for PE systems, while rubber cement, solvent cement, and threaded coupling do not match ICC PE joining practice. Because of that, D is the best answer from the listed options, but this question should be tied to the exact code cycle or source exam bank if you want absolute cycle-specific certainty
NEW QUESTION # 44
A low-pressure steam heating boiler is a boiler furnishing a maximum steam pressure of _____ psi.
Answer: A
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 # 45
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