AWS Blueprint Reading & Symbols 5

Question 1

What does a melt-through symbol look like on an AWS welding symbol?

Accepted Answer

A filled (solid) circle on the opposite side of the reference line

Answer

The melt-through symbol is a filled (solid black) circle placed on the opposite side of the reference line from the weld symbol.

Question 2

On a blueprint, an isometric view is primarily used to:

Accepted Answer

Show a 3D representation of a part without true perspective distortion

Answer

Isometric drawings present a three-dimensional appearance using 30° angles from horizontal, making spatial relationships clear.

Question 3

Which AWS welding symbol element specifies the contour to which a weld face should be finished?

Accepted Answer

A contour symbol (flat, convex, or concave) placed above or below the weld symbol

Answer

Contour symbols — flat (straight line), convex (arc up), or concave (arc down) — are placed on the weld symbol to specify the final weld face shape.

Question 4

On a multi-view orthographic drawing, the right-side view is projected from which view?

Accepted Answer

Front view

Answer

In standard third-angle projection (used in the US), the right-side view is projected from the right side of the front view.

Question 5

A welding symbol has a 'C' in the tail. What does this signify?

Accepted Answer

A specific welding procedure or specification code is referenced

Answer

Information in the tail of the welding symbol refers to a specification, process, or procedure — such as a WPS code.

AWS Practice Test