Question

The diameter of the hole in which the split pin is to be put is __________ when D is the diameter of bolt.

(a) 0.12D

(b) 0.2D

(c) 0.3D

(d) 0.4D

I got this question by my school teacher while I was bunking the class.

I need to ask this question from Locking Arrangements for Nuts in chapter Screw Threads & Screwed Fastening of Engineering Drawing

Answer 1

Right answer is (b) 0.2D

For explanation I would say: When D is the diameter of bolt the diameter of the hole in which the split pin is 0.2D approximately, 0.3D is the height of slot made in the nut in which split pin is arranged and 0.12D is the thickness of the washer.