What this book covers The Peerless Landscaping (C-27) Study Guide Book prepares you for the trade portion of the California CSLB contractor license exam. Per the state's classification, a C-27 contractor constructs, maintains, and repairs plots and areas of land including hardscapes, drainage systems, irrigation, planting, and retaining walls. This printed book covers the subjects the state tests. See the official CSLB C27 classification. Book chapters Site preparation Irrigation systems Fertilizers Plans & specifications Concrete & masonry Hardscapes Low voltage lighting Mathematics Safety Landscaping Sample questions Why would you not want to waterproof a retaining wall?A. The water seeping through would discolor it · B. Water pressure would build up against the wall ✓ · C. It would become too wet on the low side · D. None of the above What drain design should you use when draining a large flat area?A. Grid · B. Parallel · C. Radial · D. Concentric circle ✓ For a two-story building, how deep in the soil must the footings be?A. 12" · B. 16" · C. 18" ✓ · D. 24"
