AWS AWS Joint Design & Weld Symbols 4

Question 1

On a welding symbol, where is the reference line located?

Accepted Answer

Horizontally drawn, to which all other symbol elements attach

Answer

The reference line is the horizontal baseline of the welding symbol to which the arrow, tail, and all weld symbols are attached.

Question 2

What does a weld symbol placed BELOW the reference line indicate?

Accepted Answer

Weld on the arrow side of the joint

Answer

A weld symbol placed below the reference line means the weld is to be made on the arrow side of the joint.

Question 3

Which joint type is most commonly used when welding two plates end-to-end in the same plane?

Accepted Answer

Butt joint

Answer

A butt joint joins two members lying in the same plane with their edges meeting.

Question 4

A 'melt-through' symbol on a welding symbol indicates that:

Accepted Answer

Complete joint penetration from one side is required

Answer

The melt-through symbol (a filled circle on the reference line opposite side) specifies that complete fusion and penetration from one side is required.

Question 5

In AWS welding symbols, what does the number to the LEFT of a fillet weld symbol represent?

Accepted Answer

Weld size (leg length)

Answer

The number to the left of a fillet weld symbol indicates the weld size, which is the leg length of the fillet weld.

AWS Practice Test

AWS Practice Test

AWS AWS Joint Design & Weld Symbols 4