App Logo

No.1 PSC Learning App

1M+ Downloads
All screw threads are based upon the curve known as the

ACycloid

BHelix

CInvolute

DParabola

Answer:

B. Helix


Related Questions:

The instrument used for reproducing,enlarging or reducing the map
Which one of the following is represented by thin continuous line
The distance from a point on one side of a gear tooth to a corresponding point on the opposite side of the same tooth, measured along the pitch circle:
Smallest basic unit of length in metric systemis
The radius of influence is