What type of fitting is a short length of pipe with threads on both ends?
A) Tee
B) Nipple
C) Union
D) Coupling
Answer: B
Explanation: A) Incorrect. A tee is used to allow flow to two different pipes that are 90-degrees apart.
B) Correct. A nipple is a short length of pipe with threads on both ends.
C) Incorrect. A union is a pipe fitting that joins two sections of threaded pipe but allows them to be disconnected without cutting or disturbing the position of the pipe.
D) Incorrect. A coupling is a short piece of pipe or "collar" used to join two lengths of pipe.
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