Question

identify the root face using these images of a fillet weld and groove weld

g
m
d
c
k

Explanation:

Analyze the groove weld diagram

The question asks to identify the "root face" from the provided diagrams of a fillet weld and a groove weld. Looking at the groove weld diagram (bottom right):

• G points to the root face (the unfavored, vertical surface portion of the groove joint preparation).
• H represents the groove angle.
• I represents the bevel angle.
• J points to the groove face.
• K represents the root opening.

Verify the definition of root face

In Groove Weld Dimensions, the root face (often denoted as the land) is the portion of the groove face adjacent to the root of the joint. In the bottom-right diagram, the vertical flat section at the bottom of the groove preparation is labeled G. Therefore, G represents the root face.

Match with the options

The multiple-choice options on the left are:

• G
• M
• D
• C
• K

The correct option corresponding to the root face is G.

Answer:

• G (Correct answer)
• M
• D
• C
• K