Plumber Tools & Equipment Handling Flashcards
7 cards from real PC practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Plumber Tools & Equipment Handling flashcards as text
Which tool is used to expand the end of a PEX-A tube before inserting a ProPEX expansion fitting?
Answer: PEX expansion tool (expander)
A PEX-A expander tool (with the correct head size) enlarges the tube end and ring so the fitting can be inserted; the memory of the material then creates the seal.
A go/no-go gauge is used in plumbing to:
Answer: Verify that a threaded connection meets tolerance specifications
A go/no-go gauge confirms that pipe threads have been cut within acceptable tolerance — the 'go' end must fit and the 'no-go' end must not.
When drilling holes through metal studs for pipe runs, which bit is recommended?
Answer: Step bit (unibit)
A step bit (unibit) efficiently cuts clean holes in sheet-metal studs without grabbing or walking, and can create multiple hole sizes with one tool.
What is the purpose of pipe joint compound (pipe dope) when applied to threaded connections?
Answer: To lubricate the threads for easier assembly and provide a sealing filler
Pipe joint compound lubricates threads during assembly and fills micro-gaps to create a pressure-tight seal.
A hydrostatic pressure test pump is used to:
Answer: Pressurize a piping system with water to check for leaks before commissioning
Hydrostatic test pumps fill and pressurize a system to a specified test pressure so leaks can be identified before the system is put into service.
Which of the following is the correct use of a drain plug (test plug) during a rough-in inspection?
Answer: Temporarily seal drain openings so the system can be filled and pressure-tested
Inflatable or mechanical test plugs are inserted into drain openings to allow the DWV system to be filled with water for leak inspection.
What does a pipe bender's 'take-up' measurement account for?
Answer: The amount of pipe consumed by the bend arc so the finished offset matches the desired dimension
Take-up (also called gain or shrinkage) is subtracted from the measured distance so the bent pipe ends up the correct length after the curve is formed.