Welding symbols practice test
20 mixed questions from every welding symbol lesson. Pick your standard, then work through them.
What do the marks where the arrow meets the reference line tell you?
What this test covers
Each question comes from one of these lessons. If a topic trips you up, go back to that lesson for more practice.
- Arrow side or other side: Read which side of the joint gets the weld. The first thing to check on any welding symbol.
- Weld types: Fillet, square, V, bevel, U, J, plug and spot weld symbols, with AWS and ISO names.
- Fillet weld size: Leg size in AWS. Throat (a) and leg (z) in ISO 2553, and how to convert between them.
- Length and pitch: Intermittent welds: length-pitch in AWS, n × l (e) in ISO 2553.
- Weld all around and field welds: The circle and the flag where the arrow meets the reference line.
- Read the whole symbol: Side, size, length, pitch, all around and field weld in one go, plus working out the numbers yourself.
- Read the welds on an assembly: A welded bracket with three symbols. Answer five questions about each drawing, like on a shop print.
Studying for the CWI exam? It uses AWS A2.4 symbols, so keep the standard on AWS. Many European employers use ISO 2553 System A.
Explained in our own words. For the full rules, see AWS A2.4:2020 and ISO 2553:2019.