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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Heating, Cooling & Water Heaters | 18% | - Water heaters and storage tanks - HVAC equipment installation and clearance - Boilers and hydronic systems - Heat pumps and cooling equipment - Solar thermal systems |
| Topic 2: Fuel Supply Systems | 10% | - Piping testing and inspection - Fuel gas piping materials and installation - Pressure regulation and overpressure protection - Gas appliances and connections |
| Topic 3: Exhaust & Ventilation Systems | 20% | - Commercial kitchen exhaust systems - Hazardous and special exhaust systems - Ventilation rates and outdoor air requirements - Makeup air systems |
| Topic 4: Combustion Air | 8% | - Air supply and venting - Confined spaces and equipment rooms - Combustion air requirements |
| Topic 5: Duct Systems | 12% | - Duct construction and materials - Dampers and access doors - Insulation and sealing - Duct installation and supports |
| Topic 6: General Administration | 18% | - Code authority and enforcement - Permits and inspections - Plan review and documentation - Manufacturer's instructions and listings |
| Topic 7: Chimneys & Vents | 14% | - Factory-built chimneys and vents - Chimney construction and materials - Vent systems and connections - Clearances and termination requirements |
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NEW QUESTION # 21
Shutoff valves in plastic pipe ground-source heat pump loop systems shall be installed on both sides of which one of the following?
Answer: C
Explanation:
In the IMC hydronic piping provisions for ground-source heat pump loop systems, shutoff valves are required on both sides of a pressure-reducing valve . That matches D . Heat-fusion joints and change-in-material joints do not trigger this two-sided shutoff-valve requirement.
NEW QUESTION # 22
What type of cooking appliance is required to have its own independent hood and exhaust system?
Answer: D
Explanation:
The IMC specifically provides that Type I hoods used over extra-heavy-duty cooking appliances shall not cover other appliances requiring fire-extinguishing protection and shall discharge to an independent exhaust system . Therefore, D is correct.
NEW QUESTION # 23
Exhibit:
CEF-5 is a ceiling exhaust fan manufactured by:
Answer: B
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 # 24
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: C
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 # 25
The exhaust outlet for a clothes dryer is required to be equipped with:
Answer: C
Explanation:
The IMC requires clothes dryer exhaust ducts to terminate outside the building and to be equipped with a backdraft damper at the terminal. The code also prohibits screens at dryer terminations because lint can accumulate and obstruct flow. That makes Option A correct and eliminates Option C . The other two choices describe controls not required by the dryer exhaust termination rule.
NEW QUESTION # 26
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