Physics · Engineering Drawing
In Engineering Drawing, principal lines (also known as continuous thick lines or outlines) are drawn to represent _________.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1wide lines along which the prints are trimmed
- 2axes of cylindrical, conical, or spherical objects
- 3visible edges and surface boundaries of objects✓
- 4interior or hidden edges
Correct answer
visible edges and surface boundaries of objects
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