Question

identify the root face using these images

d
g
k
c
m

question 5 of 10
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Explanation:

Define the root face in groove weld geometry

Using the Root Face Definition knowledge point

The root face (often called the land) is the portion of the groove face adjacent to the joint root. In the provided diagram of a groove weld preparation on the right:

• \(G\) represents the base metal thickness.
• \(H\) represents the groove angle.
• \(I\) represents the bevel angle.
• \(J\) represents the groove face.
• \(K\) represents the root opening.
• \(M\) represents the root face (the flat, un-beveled vertical portion at the bottom of the groove joint preparation).

Therefore, the letter that identifies the root face is M.

Answer:

• D
• G
• K
• C
• M (Correct answer)