AWS AWS Joint Design & Preparation

Question 1

What is the 'root opening' (root gap) in a welded joint?

Accepted Answer

The separation between the members to be joined at the root of the joint

Answer

The root opening is the space between the base metal pieces at the bottom of the joint to ensure complete root penetration.

Question 2

Which joint type is formed when two members overlap each other in parallel planes?

Accepted Answer

Lap joint

Answer

A lap joint is created when two workpieces overlap and are welded at their edges.

Question 3

What is the 'groove angle' in a welded joint?

Accepted Answer

The total angle of the groove between the two workpieces

Answer

The groove angle is the total included angle formed by the groove faces of the two base metal pieces.

Question 4

A 'root face' (land) in a groove weld joint refers to:

Accepted Answer

The flat portion at the root of a groove before welding

Answer

The root face (land) is the flat, unprepared portion at the bottom of a groove that helps control burn-through.

Question 5

Which groove weld preparation is most economical for joining thin plate (under 3/16 in.) in a butt joint?

Accepted Answer

Square groove (no bevel)

Answer

A square groove (no bevel) requires no edge preparation and is most economical for thin plate where full penetration can be achieved without beveling.

AWS Practice Test

AWS Practice Test

AWS AWS Joint Design & Preparation