This symbol below means: (CL symbol)

This symbol below means: (CL symbol)

• A. Center Line
• B. Center of Gravity
• C. Construction Line
• D. Alignment

Answer: (A)

Center Line marks the axis of symmetry or the central axis of a feature. On drawings, it’s shown as a line with alternating long and short dashes, often labeled with CL to indicate it’s the centerline. This line helps locate and align features like bolt holes, holes in plates, or the center of circular shapes, so components line up correctly when assembled or welds are placed along that axis. It’s not the center of gravity, which relates to weight distribution and wouldn’t use this symbol, and it isn’t just a construction line or a general alignment cue—the centerline symbol specifically designates the true middle axis of the part or pattern.

Center Line marks the axis of symmetry or the central axis of a feature. On drawings, it’s shown as a line with alternating long and short dashes, often labeled with CL to indicate it’s the centerline. This line helps locate and align features like bolt holes, holes in plates, or the center of circular shapes, so components line up correctly when assembled or welds are placed along that axis. It’s not the center of gravity, which relates to weight distribution and wouldn’t use this symbol, and it isn’t just a construction line or a general alignment cue—the centerline symbol specifically designates the true middle axis of the part or pattern.