: The ratio between drawing size and actual size (e.g., 1/4" = 1').
: "Object lines" show main outlines, while "hidden lines" show non-visible edges.
: Covers masonry, flatwork, retaining walls, and water features. CARPENTRY AND LANDSCAPING TEST
: Involves pruning, tree removal, and troubleshooting irrigation systems. ⚠️ Safety & Tools
: Standard on-center (OC) spacing for floor joists and studs is usually 16 inches. : The ratio between drawing size and actual size (e
: Measuring diagonals both ways is more accurate for large rectangular objects than the 6-8-10 method. Blueprints & Drafting :
The C-27 Landscaping Study Guide divides the exam into planning, installation, and maintenance. and water features. : Involves pruning
: "Rise and run" determines the slope; a 6/12 pitch means the roof rises 6 inches for every 12 inches of horizontal run. Mathematical Foundations :