Objective 05: Supplemental Weld Symbols

Question 1

Identify this supplementary weld symbol:

Answer 1

Melt Through

Question 2

Identify this supplementary weld symbol:

Answer 2

Field Weld

Question 3

Identify this supplementary weld symbol:

Answer 3

Weld All Around

Question 4

Identify this supplementary weld symbol:

Answer 4

Backing Weld

Question 5

Identify this supplementary weld symbol:

Answer 5

Spacer Weld

Question 6

Identify this supplementary weld symbol:

Answer 6

Consumable Insert

Question 7

Identify this supplementary weld symbol:

Answer 7

Flat Contour Weld

Question 8

Identify this supplementary weld symbol:

Answer 8

Concave Contour Weld

Question 9

Identify this supplementary weld symbol:

Answer 9

Convex Contour Weld

Question 10

Melt Through (Welding)

Answer 10

Root weld that is made to extend beyond the surface at the bottom of a groove weld

Question 11

Field Weld

Answer 11

A weld that cannot be performed in the construction shop, but must be performed at the final location

Question 12

Weld All Around

Answer 12

The weld is to be continuous around one of the joint members

Question 13

Backing Weld

Answer 13

The root of the weld fuses with a backing ring or plate flush with the surface prior to welding, which normally remains in place after the weld

Question 14

What is the purpose of a Backing Weld?

Answer 14

To prevent melt through at the back of a groove weld

Question 15

Spacer (Welding)

Answer 15

Similar to a backing ring except that it fits into space between the members of the groove

Question 16

What is the function of a Spacer when welding?

Answer 16

1. It acts as a backing
2. Keeps the joint root open during welding

Question 17

Consumable Insert

Answer 17

Filler material added to the weld joint, usually to add strength

Question 18

Contour Symbols

Answer 18

Represents the way the face of the weld should be finished (flat or flush, concave or convex)

Question 19

How does a welder deal with a weld which doesn’t produce the required contour?

Answer 19

Machining or grinding must be used to shape the surface