Warped surfaces cannot be unrolled or unfolded to lie flat. – McqOptions

MCQOPTIONS

1.	Warped surfaces cannot be unrolled or unfolded to lie flat.
A.	1
B.
Answer» B.

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Another method used to setup an auxiliary view is to align the UCS with the inclined plane.
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A double-curved surface is generated by a curved line and has straight-line elements.
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