CSLB Concrete (C-8): Online Practice Exam

What this exam covers

Practice questions for the California CSLB Concrete (C-8) license exam, delivered online and graded instantly. Per the state's classification, a C-8 contractor "forms, pours, places, finishes and installs specified mass, pavement, flat and other concrete work; and places and sets screeds for pavements or flatwork." Works on any device, including iPad. See the official CSLB C-8 classification.

Updated July 2026 · 2022 CA Codes · 446 Questions · Topic Practice

• Content Last Updated: July 24, 2026
• Code Basis: 2022 California Codes
• Question Count: 446 practice questions
• Organized By: CSLB study-guide topic categories
• Includes: This practice exam has been updated using Peerless’s vetted usable question set. Questions are organized by CSLB study-guide topic categories and include answer explanations to support full-exam review and focused topic practice. Each topic has a mini-exam to help you develop mastery.

Sample questions — Try our free practice test

1. A 6 cu. yd. load of concrete weighs 22,842 lbs. What is the unit weight of the concrete?
   A. 121 lb./cu. ft. · ✓ B. 141 lb./cu. ft. · C. 282 lb./cu. ft. · D. 564 lb./cu. ft.
2. 6 × 6 – 10 × 10 welded-wire fabric has:
   A. 10-inch wire spacing · ✓ B. unequal wire spacing · C. 6-inch wire spacing · D. No. 6 gauge transverse wires
3. A caisson is:
   ✓ A. a cast-in-place pile · B. an underwater footing · C. a continuous footing · D. none of the above