Question

quiz
question 6 of 10
identify the root face using these images
c
g
m
k
d

Explanation:

Identify the root face

Using the Root Face Definition knowledge point

The root face is the portion of the groove face adjacent to the joint root. Looking at the second diagram showing a groove joint preparation:

• \(G\) represents the groove depth or bevel depth.
• \(H\) 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 land at the bottom of the groove).

Therefore, the letter corresponding to the root face is \(M\).

Answer:

• C
• G
• M (Correct answer)
• K
• D