What this book covers The Peerless Earthwork & Paving (C-12) Study Guide Book prepares you for the trade portion of the California CSLB contractor license exam. 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 C12 classification. Book chapters General site preparation Asphalt Tools & equipment Safety Mathematics review Soil density measurements Plans & specifications Sample questions A lime treatment is usually called for when the soil is:A. Cohesive · B. Clay ✓ · C. Loam · D. Acid The minimum allowance in compaction is:A. 80% · B. 85% · C. 90% ✓ A method that is generally accepted for improving soils is:A. Compaction · B. Density and kneading action · C. Lateral or subdrainage ✓
