What this book covers The Peerless Drywall (C-9) Study Guide Book prepares you for the trade portion of the California CSLB contractor license exam. Per the state's classification, a C-9 contractor "installs, tapes, textures, and finishes drywall, gypsum board, and other similar rigid wallboard." This printed book covers the subjects the state tests. See the official CSLB C9 classification. Book chapters Glossary Types of gypsum board Application of gypsum board Supporting construction Attachments & fasteners Joint & fastener treatment Estimating Plans & specifications Special applications Mathematics review Cal/OSHA Tools & equipment Sample questions For semisolid partitions, nailing blocks should be spaced:A. 12" · B. 16" · C. 24" ✓ · D. 30" Blocking behind the tub to support sheetrock is installed by the:A. Plumber · B. Drywall mechanic · C. Framer ✓ · D. Tile setter Which type of resistance does double-layer gypsum board provide?A. Sound and fire ✓ · B. Sound and waterproofing · C. Waterproofing and fire · D. Security and sound
