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| Section | Weight | Objectives |
|---|---|---|
| Combustion Air | 8% | - Air supply and venting - Combustion air requirements - Confined spaces and equipment rooms |
| Heating, Cooling & Water Heaters | 18% | - Water heaters and storage tanks - Solar thermal systems - HVAC equipment installation and clearance - Heat pumps and cooling equipment - Boilers and hydronic systems |
| Exhaust & Ventilation Systems | 20% | - Hazardous and special exhaust systems - Makeup air systems - Commercial kitchen exhaust systems - Ventilation rates and outdoor air requirements |
| General Administration | 18% | - Manufacturer's instructions and listings - Permits and inspections - Plan review and documentation - Code authority and enforcement |
| Chimneys & Vents | 14% | - Factory-built chimneys and vents - Clearances and termination requirements - Vent systems and connections - Chimney construction and materials |
| Duct Systems | 12% | - Duct construction and materials - Insulation and sealing - Dampers and access doors - Duct installation and supports |
| Fuel Supply Systems | 10% | - Piping testing and inspection - Gas appliances and connections - Pressure regulation and overpressure protection - Fuel gas piping materials and installation |
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NEW QUESTION # 44
Where the cooking surface has exposed flame and burners, the minimum distance between the lowest edge of a grease filter and the cooking or heating surface shall be _____ inches.
Answer: D
Explanation:
For cooking equipment with exposed flame and burners , the IMC table for grease-filter mounting position requires a minimum vertical separation of 24 inches between the lowest edge of the grease filter and the cooking surface. That makes B correct.
NEW QUESTION # 45
Air mechanically exhausted from a room must be:
Answer: C
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 # 46
Pipe and duct insulation can be used within plenums except:
Answer: D
Explanation:
For materials such as pipe and duct insulation within plenums, the IMC references ASTM E84 or UL 723 for surface-burning characteristics, along with the flame-spread and smoke-developed limits applicable to plenums. ASTM B84 is not the referenced plenum test standard here, so it is the incorrect condition and therefore the correct exam answer to the "except" question. This makes Option C correct.
NEW QUESTION # 47
Given: single-wall vent, which serves only one appliance, and has a height of 10 feet.
The maximum horizontal length permitted for a 5-inch diameter vent connector serving this vent is _____ feet.
Answer: D
Explanation:
For a single-wall vent connector serving one appliance, the maximum horizontal length is determined from the vent connector sizing and length rules. For a 5-inch diameter connector with a 10-foot vent height , the permitted maximum horizontal length is 7.5 feet . Therefore, Option B is correct.
NEW QUESTION # 48
Indoor combustion air shall be provided within:
Answer: C
Explanation:
For indoor combustion air openings, one opening must commence within 12 inches of the top of the enclosure and one within 12 inches of the bottom . That corresponds to 1 foot of the ceiling and 1 foot of the floor , so Option A is correct.
NEW QUESTION # 49
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