# PDD | Selected Rated Assemblies Based on Building Type, Site, & Life Safety \[Exercise A\]

**URL:** <https://community.blackspectacles.com/t/pdd-selected-rated-assemblies-based-on-building-type-site-life-safety-exercise-a/7602>\
**Category:** Real-World Practice\
**Tags:** real-world-practice\
**Created:** [December 8, 2025, 8:09pm UTC](https://community.blackspectacles.com/t/pdd-selected-rated-assemblies-based-on-building-type-site-life-safety-exercise-a/7602 "2025-12-08T20:09:22Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![kiaragalicinao](https://yyz1.discourse-cdn.com/flex029/user_avatar/community.blackspectacles.com/kiaragalicinao/32/1607_2.png) [@kiaragalicinao](https://community.blackspectacles.com/u/kiaragalicinao)\
**Post date:** [December 8, 2025, 8:09pm UTC](https://community.blackspectacles.com/t/pdd-selected-rated-assemblies-based-on-building-type-site-life-safety-exercise-a/7602/1 "2025-12-08T20:09:22Z")

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**Author:** ![Mei-Po.Leung](https://blackspectacles.com/uploads/images/3.png) [@Mei-Po.Leung](https://community.blackspectacles.com/u/Mei-Po.Leung)\
**Post date:** [January 24, 2026, 1:52am UTC](https://community.blackspectacles.com/t/pdd-selected-rated-assemblies-based-on-building-type-site-life-safety-exercise-a/7602/2 "2026-01-24T01:52:40Z")

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Refer to question #7, wall I is 1/2 hour - why answer for question #9 suddenly it will become 1 hour. The answer is wrong.

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**Author:** ![Mei-Po.Leung](https://blackspectacles.com/uploads/images/3.png) [@Mei-Po.Leung](https://community.blackspectacles.com/u/Mei-Po.Leung)\
**Post date:** [January 24, 2026, 1:56am UTC](https://community.blackspectacles.com/t/pdd-selected-rated-assemblies-based-on-building-type-site-life-safety-exercise-a/7602/3 "2026-01-24T01:56:31Z")

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sorry - ignore my previous message

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**Author:** ![maria.etcharren](https://blackspectacles.com/uploads/images/11.png) [@maria.etcharren](https://community.blackspectacles.com/u/maria.etcharren)\
**Post date:** [August 29, 2026, 6:08pm UTC](https://community.blackspectacles.com/t/pdd-selected-rated-assemblies-based-on-building-type-site-life-safety-exercise-a/7602/4 "2026-08-29T18:08:04Z")

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I’m looking through chart 508.4 Required Occupancies, and can’t find the A-2 specific occupancy call out to check the fire rating requirements for a sprinklered building. I’m a little confused by the explanation for question 5. Thanks 🙂