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| Section | Weight | Objectives |
|---|---|---|
| Heating, Cooling & Water Heaters | 18% | - Solar thermal systems - Heat pumps and cooling equipment - Water heaters and storage tanks - HVAC equipment installation and clearance - Boilers and hydronic systems |
| Exhaust & Ventilation Systems | 20% | - Hazardous and special exhaust systems - Commercial kitchen exhaust systems - Makeup air systems - Ventilation rates and outdoor air requirements |
| Fuel Supply Systems | 10% | - Gas appliances and connections - Piping testing and inspection - Pressure regulation and overpressure protection - Fuel gas piping materials and installation |
| Duct Systems | 12% | - Dampers and access doors - Insulation and sealing - Duct installation and supports - Duct construction and materials |
| Combustion Air | 8% | - Confined spaces and equipment rooms - Air supply and venting - Combustion air requirements |
| Chimneys & Vents | 14% | - Clearances and termination requirements - Vent systems and connections - Factory-built chimneys and vents - Chimney construction and materials |
| General Administration | 18% | - Permits and inspections - Code authority and enforcement - Manufacturer's instructions and listings - Plan review and documentation |
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NEW QUESTION # 16
A cooling system with a condensate disposal system:
Answer: D
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 # 17
Horizontal terminations for mechanical draft systems that are adjacent to public walkways shall be located a minimum of _____ feet above grade.
Answer: A
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 # 18
To test for tightness, a consumer's gas piping should never be filled with:
Answer: D
Explanation:
The IFGC section on test medium states that the test medium shall be air, nitrogen, carbon dioxide or an inert gas , and specifically states that oxygen shall not be used as a test medium . That makes C the correct answer.
NEW QUESTION # 19
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 # 20
What is the minimum air velocity that must be provided by an exhaust duct system serving a Type I range hood?
Answer: A
Explanation:
For commercial kitchen exhaust associated with Type I hood systems, the recognized code-based minimum duct transport velocity is 1,500 feet per minute , so C is the correct answer. Option B uses the wrong unit, and the other listed velocities do not match the code minimum used for this question type.
NEW QUESTION # 21
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