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When a plane is perpendicular to a reference plane, its projection on that plane is a __________

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in Civil Engineering Drawing by (128k points)
When a plane is perpendicular to a reference plane, its projection on that plane is a __________

(a) straight line

(b) true line

(c) apparent line

(d) point

This question was addressed to me during an online exam.

I'd like to ask this question from Projections of Planes topic in division Orthographic Projection, Projections of Lines, Planes and Solids of Civil Engineering Drawing

1 Answer

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Best answer
The correct option is (a) straight line

Best explanation: Top views of the two end points of a line, when joined, give the top view of the line. Front views of the two end points of the line, when joined, give the front view of the line. Both these Projections are straight lines.

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