1. Civil Engineering
  2. Engineering Graphics
  3.                        is a curve genera...

                       is a curve generated by a point fixed to a circle, within or outside its circumference, as the circle rolls along a straight line.

A. cycloid
B. epicycloid
C. epitrochoid
D. trochoid
Answer» D. trochoid
Explanation: cycloid form if generating point is on the circumference of generating a circle. epicycloid represents generating circle rolls on the directing circle. epitrochoid is that the generating point is within or outside the generating circle but generating circle rolls on directing circle.
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