CSLB Earthwork and Paving (C-12): Study Guide and Online Practice Exam

What’s included

• Learn the material: Earthwork & Paving (C-12) Study Guide Book
• Pass the test: Earthwork & Paving (C-12) Practice Exam

What this covers

Per the state's classification, a C-12 contractor "grades, clears, and prepares land surfaces; excavates, fills, and compacts earthwork, including grading for roads, streets, and other paved areas." This printed book covers the subjects the state tests. See the official CSLB C-12 classification.

Sample questions — Try our free practice test

1. A lime treatment is usually called for when the soil is:
   A. Cohesive · ✓ B. Clay · C. Loam · D. Acid
2. The minimum allowance in compaction is:
   A. 80% · B. 85% · ✓ C. 90%
3. A method that is generally accepted for improving soils is:
   A. Compaction · B. Density and kneading action · ✓ C. Lateral or subdrainage
4. Which of the following would be required when using blasting powder?
   A. ability to read english · B. safety glasses · ✓ C. a permit to use it · D. all of the above
5. When bell and spigot cast iron pipe is to be laid in a trench which has been mechanically excavated, the "bell-holes" are usually dug by:
   A. a bulldozer · ✓ B. hand · C. a dragline · D. a trencher
6. What is the next step after ripping, when ripping and re-compacting existing road?
   A. spread the ripped asphalt · B. roll the ripped asphalt · C. crush the ripped asphalt · ✓ D. scrape the ripped asphalt into windows