AWS Welding Symbols & Blueprint Reading 2

Question 1

On a welding symbol, what does a flag attached to the reference line indicate?

Accepted Answer

Field weld

Answer

A flag (filled triangle) on the reference line denotes a field weld, meaning the weld is to be made at the installation site rather than in the shop.

Question 2

What does the letter 'F' following a weld size designation in a welding symbol specify?

Accepted Answer

Finish method of the weld surface

Answer

The 'F' contour symbol indicates the method used to finish the weld surface (e.g., G=grind, M=machine, C=chip).

Question 3

In AWS welding symbol notation, where is the groove weld size placed relative to the weld symbol?

Accepted Answer

To the left of the weld symbol

Answer

The groove weld size (depth of bevel or effective throat) is placed to the left of the weld symbol on the reference line.

Question 4

What does a circle at the intersection of the reference line and arrow indicate on a welding symbol?

Accepted Answer

Weld all around

Answer

A circle at the junction of the arrow and reference line means the weld is to be made completely around the joint.

Question 5

On a blueprint, a hidden line is represented by which line type?

Accepted Answer

Dashed line

Answer

Hidden lines are drawn as evenly spaced dashes to indicate edges or surfaces not visible from the current viewing angle.

AWS Practice Test