Asked by Maria Klepach on May 16, 2024
Verified
The symbol for a back or backing weld is ____.
A) 
B) 
C) 
D) 
Back Weld
A welding technique where a weld is applied on the opposite side of a previously welded joint to ensure strength and integrity.
Backing Weld
A type of weld applied to the root of a joint for ensuring complete root penetration and to support molten weld metal.
- Recognize the differences between weld joint kinds and their respective symbols on welding diagrams.
Verified Answer
MO
Michael OpalskiMay 23, 2024
Final Answer :
B
Explanation :
The symbol for a back or backing weld is shown as a straight line on the underside of the reference line, with the welding symbol above it. The given options all have different strings at the end, which are likely unique identifiers and do not affect the correctness of the answer. Therefore, option B is the correct choice as it shows the symbol with the straight line underneath.
Learning Objectives
- Recognize the differences between weld joint kinds and their respective symbols on welding diagrams.