Question

In butt joint when one strap is used the thickness varies between _______ to ________ (T is the thickness of plate to be connected).

(a) T, 1.125T

(b) 0.7T, 0.8T

(c) 0.5T, T

(d) T, 1.5T

The question was posed to me in a job interview.

Question is from Riveted Joints topic in portion Computer Aided Drawing, Riveted & Welded Joints of Engineering Drawing

Answer 1

Correct option is (a) T, 1.125T

To explain: In a butt joint, edges of the plates to be connected are butted against each other and the joint between them is covered by butt-plates or butt-straps on one or both sides. At least two rows of rivets, one in each connected plate, are necessary to make the joint.