21. Which of the following is the definition for a detail drawing? A. It is a drawing plan made according to a scale, smaller than the actual work.
B. It is a drawing which resembles a respective drawing
C. It is a separate drawing showing a small part of a machine or structure,
D. It is the representation of an object on a plan surface, pertaining to materials, styles and finish presented as
to have the same appearances as when seen from a viewpoint.

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