Explain why the abbreviation for diameter, DIA, is used for one-view drawings for round parts with cylindrical surfaces.

What will be an ideal response?


Many round parts, with cylindrical surfaces symmetrical about the axis, can be represented on one-view drawings. The abbreviation for diameter, DIA, is used with the dimension in such instances because no other view is needed to show the shape of the surface.

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Complete the above MRP record. Which of the following statements is correct?

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