What type of weld is used if one pipe is small enough to fit snugly inside the other?
A) Glue weld
B) Butt weld
C) Brazed weld
D) Socket weld
Answer: D
Explanation: A) Incorrect. The types of welds used are a butt weld or a socket weld.
B) Incorrect. A butt weld is used if the pipes are the same diameter.
C) Incorrect. The types of welds used are a butt weld or a socket weld.
D) Correct. A socket weld is used if one pipe is small enough to fit snugly inside the other.
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