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1. B
2.C
3. A
4. A
5. D
Explanation:
1. Invisible line - A medium line used to show edges and contours not visible to the eye
2.Centerline - A light line used as axis of symmetry. Used for center of circle and arcs. Sometimes the symbol is shown. The dimension line is broken near the center for the dimension
3.The Alphabet of Lines is a list of line symbols that engineers use in technical drawings to communicate specific shapes, sizes or surfaces.
4.Borderline - Heavy, solid line used to frame in the drawing.
5.Construction line - Very light line used to “block in” an object. These lines are made so light that little or no erasing is needed. They serve as base for darkening in the permanent line