Question

__________ is a curve generated by a point on the circumference of a circle which rolls without slipping on a straight line.

(a) Trochoid

(b) Epicycloid

(c) Cycloid

(d) Evolute

I have been asked this question in an international level competition.

I'm obligated to ask this question of Construction of Cycloidal Curves topic in division Geometrical Construction of Engineering Drawing

Answer 1

Correct option is (c) Cycloid

Easy explanation: Trochoid is curve generated by a point fixed to a circle, within or outside its circumference, as the circle rolls along a straight line. Cycloid is a curve generated by a point on the circumference of a circle which rolls along a straight line. ‘Epi’ represents the directing path is a circle.