CSLB Drywall (C-9): Study Guide and Online Practice Exam + Law and Business Study Guide and Online Practice Exam

What’s included

• Learn the material: Drywall (C-9) Study Guide Book
• Pass the test: Drywall (C-9) Practice Exam
• Required for all California contractor applicants: Law & Business Study Guide Book and Law & Business Practice Exam

What this covers

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 C-9 classification.

Sample questions — Try our free practice test

1. For semisolid partitions, nailing blocks should be spaced:
   A. 12" · B. 16" · ✓ C. 24" · D. 30"
2. Blocking behind the tub to support sheetrock is installed by the:
   A. Plumber · B. Drywall mechanic · ✓ C. Framer · D. Tile setter
3. 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
4. A bugle head screw attaches multi-layer gypsum board to steel framing up to what gauge?
   A. 12 · ✓ B. 14 · C. 16 · D. 24
5. Fasteners for applying metal trim should be spaced a maximum of how many inches o.c.?
   A. 14" · B. 12" · C. 10" · ✓ D. 9"
6. Finishing compound should be applied with tools of sufficient width to extend at least how many inch(es) beyond both sides of the center of the joint tape?
   ✓ A. 6 · B. 5 · C. 4 · D. 3
7. [Law & Business] A construction contract was written containing the following time estimates to complete the job. It would take 2 days to ready the construction site and then the job itself would be done in 2 phases. The first phase would take 10 days and the second would take 7 days, but these 2 phases could be at the same time. It would take one additional day at the end to clean up. How many days would it take to complete this project?
   A. 15 days · ✓ B. 13 days · C. 11 days · D. 7 days
8. [Law & Business] A contractor receives a notice from the Employment Development Department (EDD) that one of his former employees has filed a claim for Unemployment Insurance (UI) benefits against his reserve account. He/she may:
   A. call EDD within 5 days and protest · ✓ B. protest, in writing, within 10 days of the mailing date of the notice · C. protest, in writing, within 30 days of the mailing date · D. protest, in writing, within 45 days of the mailing date