Question

Which of the following groove weld is used for plates of thickness more than 40mm?

(a) Double-bevel

(b) Single-J

(c) Single-U

(d) Double-U

This question was posed to me during an interview.

This question is from Types and Properties of Welding in section Welded Connections of Design of Steel Structures

Answer 1

Right option is (d) Double-U

The explanation is: The groove is made of double-bevel or double-V for plates of thickness more than 12mm, and made of double-U or double-J for plates of thickness more than 40mm. For plates of thickness between 12-40mm, single-J and single-U grooves may be used.