Answer Key: Self-Test D-4.2
- a. Intumescent
- c. Annular
- d. FT
- b. Passive
- b. FT
- d. Installation before the concrete is poured
- a. Membrane
- b. Fire-stop collar
- a. Caulking
- b. FT
- a. Insulation placed on the pipe below the slab
- d. Tightly fitted escutcheon
- c. Insulation placed on the pipe on both sides of the wall
- a. Sloped down in the direction of flow and the penetration sealed