Plumbing Tools
What the exam tests
This domain checks whether you can identify, select, use and maintain plumbing tools safely. Questions often describe a job-cutting GI pipe, threading, bending copper, tightening a union-and ask for the correct tool, jaw direction or maintenance step.
Core rules
- Match the tool to the material: hacksaw or wheel cutter for metal; PVC/UPVC cutter or fine-tooth saw for plastic; tubing cutter for copper.
- A pipe wrench grips only pipe and fittings; never use it on chrome, plastic or finished surfaces. Pull the handle toward you so the jaws bite.
- Use an adjustable wrench of the correct size and pull toward the fixed jaw; it is not for high torque or for pipe.
- Threading needs a pipe vice, reamer, die stock with the correct BSP die, cutting oil, and a reverse turn to clear chips.
- Keep cutting edges sharp, wipe tools after use and store them in a toolbox.
Worked example
Task: prepare a 25 mm NB GI pipe end for a socket. Select a pipe vice, hacksaw with an 18–24 TPI blade, reamer, 1-inch BSP die and stock, cutting oil and pipe wrench. Clamp near the cut, cut square, ream the burr, secure the pipe in the vice, oil the die, cut the thread, reverse to clear chips and test with a fitting. Reason: 25 mm NB GI uses a 1-inch BSP thread; reaming prevents turbulence and corrosion; oil improves the thread.
Traps
Using a pipe wrench on plastic; forcing a die without oil; leaving burrs; over-tightening; using a wood saw on GI; ignoring tool maintenance.