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2024 International Mechanical Code
Chapter 4: Ventilation

Quiz: 2024 International Mechanical Code Chapter 4: Ventilation

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1. Which code chapter governs the mechanical exhaust systems for clothes dryers and hazardous exhaust systems?

Chapter 3
Chapter 4
Chapter 5
Chapter 6

2. Under what condition must a dwelling unit be ventilated by mechanical means in accordance with Section 403?

When the unit is over 3,000 square feet
When the unit meets specific air leakage requirements of the IECC or ASHRAE 90.1
When the unit has more than 3 bedrooms
Always, regardless of construction

3. During which periods must required ventilation be provided for a room or space?

24 hours a day
Only during daylight hours
During the periods that the room or space is occupied
When the outdoor temperature is between 60F and 85F

4. What is the minimum required horizontal distance between a mechanical outdoor air intake opening and a hazardous contaminant source, such as a loading dock?

3 feet
5 feet
10 feet
25 feet

5. An outdoor air intake opening is located 8 feet horizontally from a parking lot. At what minimum vertical height above the parking lot must the opening be located to be permitted?

10 feet
15 feet
20 feet
25 feet

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