AWS Blueprint Reading & Symbols 2

Question 1

What does the reference line in a welding symbol represent?

Accepted Answer

The baseline from which all weld information is communicated

Answer

The reference line is the horizontal line in a welding symbol from which all weld specifications — type, size, length, finish — are communicated above, below, or at the tail.

Question 2

A circle at the intersection of the arrow and reference line on a welding symbol means:

Accepted Answer

Weld all around

Answer

A circle at the junction of the arrow and reference line is the 'weld all around' symbol, instructing the welder to weld the entire perimeter of the joint.

Question 3

On a welding symbol, the number to the LEFT of the weld symbol indicates:

Accepted Answer

Length of the weld

Answer

Per AWS A2.4, the length of the weld is shown to the right of the weld symbol, while pitch (spacing) is shown after a dash to the right. The number to the left indicates weld size.

Question 4

Which groove weld symbol resembles a capital letter 'V'?

Accepted Answer

V-groove

Answer

The V-groove weld symbol is drawn as a 'V' shape between two parallel lines, representing both sides of the joint beveled to form a V shape.

Question 5

A flag on the welding symbol indicates:

Accepted Answer

Weld must be performed in the field (on-site)

Answer

A flag (pennant shape) at the junction of the arrow and reference line indicates a field weld — the weld is to be made at the installation or erection site, not in the shop.

AWS Practice Test

AWS Practice Test

AWS Blueprint Reading & Symbols 2