The curve generated by a point fixed to a circle outside its circumference s it rolls along a circle outside it, is called _______________(a) Inferior epitrochoid(b) Superior trochoid(c) Inferior trochoid(d) Superior EpitrochoidThe question was asked during a job interview.I would like to ask this question from Curves Used in Engineering Practice in division Lettering Practice, Scales & Curves of Civil Engineering Drawing

The curve generated by a point fixed to a circle outside its circumfer

1.	The curve generated by a point fixed to a circle outside its circumference s it rolls along a circle outside it, is called _______________(a) Inferior epitrochoid(b) Superior trochoid(c) Inferior trochoid(d) Superior EpitrochoidThe question was asked during a job interview.I would like to ask this question from Curves Used in Engineering Practice in division Lettering Practice, Scales & Curves of Civil Engineering Drawing
Answer» Correct answer is (d) Superior EPITROCHOID The best I can explain: An epitrochoid is a roulette traced by a point ATTACHED to a circle of radius r ROLLING around the outside of a fixed circle of radius R, where the point is at a DISTANCE d from the center of the exterior circle.

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