Distinguish among a fire partition, a fire barrier, and a fire wall.

• A. Fire partition is a load-bearing boundary; fire barrier is non-load-bearing; fire wall is non-rated boundary.
• B. Fire partition is exterior-only; fire barrier is interior non-rated; fire wall has no continuity requirements.
• C. Fire partition is a high-rating boundary; fire barrier is non-load-bearing; fire wall is not rated.
• D. Fire partition is a non-load-bearing rated boundary; fire barrier is a rated boundary that can be load-bearing; fire wall is a structural boundary with higher rating and continuity.

Answer: (D)

These terms describe three levels of fire protection for vertical boundaries, each with different structural and continuity responsibilities. A fire partition is a boundary between spaces that provides a fire-resistance rating but does not carry structural loads. A fire barrier is a more robust, rated boundary that can carry loads and must form a continuous enclosure from floor to floor, protecting a specific occupancy or corridor and allowing protected openings. A fire wall is the most protective and structural boundary, with a higher fire-resistance rating and full vertical continuity from foundation to roof, designed to resist fire spread on both sides and to keep large parts of the building compartmentalized.

So, the distinctions line up with a non-load-bearing, rated boundary for partitions; a rated boundary that can be load-bearing for barriers; and a structural, highly rated, continuously extending wall for fire walls.