Which tool is used to mark long straight lines across surfaces?

• A. Circle Stencil
• B. Chalk Line
• C. French Curves
• D. Measuring Tape

Answer: (B)

Marking long straight lines across large surfaces is best done with a chalk line because it creates a crisp, continuous mark over great distances without needing to hold a ruler along the surface. You set it up between two points, fill the string with chalk, pull it tight, and snap it to leave a straight line. This method is especially handy in carpentry, tiling, and masonry when you need a guide across long spans. The other tools aren’t suited for this purpose: a circle stencil is for circles, not straight lines; French curves guide irregular curves; a measuring tape helps measure distances but doesn’t leave a long straight mark on the surface. So, the chalk line is the best choice for marking long straight lines.