Plumbing Tools & Techniques

Question 1

What tool is used to cut copper pipe cleanly without burrs?

Accepted Answer

Pipe cutter (tube cutter)

Answer

A pipe cutter (tube cutter) uses a hardened wheel to score and cut copper pipe cleanly with minimal burring, rotating around the pipe until it cuts through.

Question 2

What is the purpose of a pipe reamer or deburring tool after cutting pipe?

Accepted Answer

To remove the interior burr left by cutting to restore full flow area

Answer

A reamer removes the interior burr created by a pipe cutter, restoring the full bore diameter and preventing the burr from causing turbulence or catching debris.

Question 3

What tool is used to thread the inside of a pipe fitting to accept a pipe nipple?

Accepted Answer

Pipe tap

Answer

A pipe tap cuts internal threads (female threads) inside a fitting to accept a threaded pipe, while a die cuts external threads (male threads) on pipe.

Question 4

What is the correct way to use Teflon tape (PTFE tape) on threaded pipe joints?

Accepted Answer

Wrap clockwise in the direction of the threads (2–3 wraps)

Answer

Teflon tape is wrapped clockwise in the direction of the threads (2 to 3 wraps) so that tightening the joint winds the tape tighter rather than unwinding it.

Question 5

What is a pipe wrench used for and what materials should it NOT be used on?

Accepted Answer

Gripping and turning threaded metal pipe; should not be used on chrome or polished finishes

Answer

Pipe wrenches grip threaded metal pipes with toothed jaws; they should never be used on chrome, polished, or soft finishes as the teeth will permanently damage the surface.

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Plumbing Tools & Techniques