PC Plumber Tools & Equipment Handling 2 — Questions and Answers
Question 1: What is the primary purpose of a pipe reamer after cutting pipe with a hacksaw?
- To measure the pipe diameter
- To remove burrs and smooth the inside edge (Correct answer)
- To apply flux to the pipe end
- To test water pressure inside the pipe
Correct answer: To remove burrs and smooth the inside edge
A pipe reamer removes the burrs created during cutting so fittings seat properly and flow is not restricted.
Question 2: Which type of wrench is MOST appropriate for tightening large-diameter plastic PVC fittings?
- Chain wrench
- Pipe wrench
- Basin wrench
- Strap wrench (Correct answer)
Correct answer: Strap wrench
A strap wrench uses a flexible strap that grips without marring or cracking soft plastic fittings.
Question 3: A plumber's snake (hand auger) is being used to clear a clog. In which direction should the cable be rotated as it is fed into the drain?
- Counterclockwise only
- Clockwise only (Correct answer)
- Alternating directions every 6 inches
- Direction does not matter
Correct answer: Clockwise only
Rotating clockwise keeps the cable coils tight and allows the tip to bore through or hook the obstruction.
Question 4: When using a propane torch to sweat copper fittings, flux should be applied:
- After heating the fitting to soldering temperature
- Only to the outside of the fitting hub
- To both the pipe end and the inside of the fitting before assembly (Correct answer)
- Only to the pipe end, never the fitting
Correct answer: To both the pipe end and the inside of the fitting before assembly
Flux must coat both mating surfaces to remove oxidation and allow solder to flow evenly into the joint.
Question 5: Which tool is used to cut threads on the outside of a steel pipe?
- Tap
- Die (Correct answer)
- Reamer
- Deburring tool
Correct answer: Die
A die cuts male (external) threads on a pipe or rod, while a tap cuts female (internal) threads.
Question 6: What is the correct technique for using a basin wrench to tighten a faucet mounting nut?
- Attach it to the supply line and pull down
- Extend the handle into the cabinet and rotate with a long swing (Correct answer)
- Use it only from above the sink deck
- Grip the nut with the fixed jaw and pull toward you
Correct answer: Extend the handle into the cabinet and rotate with a long swing
A basin wrench's swiveling jaw is designed to reach up behind the sink deck; its long handle provides leverage in tight spaces.
Question 7: A 4-in-1 screwdriver is an example of which tool category?
- Power tool
- Combination/multi-use hand tool (Correct answer)
- Specialty diagnostic tool
- Percussion tool
Correct answer: Combination/multi-use hand tool
A 4-in-1 screwdriver is a combination hand tool that holds two Phillips and two flathead bits of different sizes.
PC Plumber Tools & Equipment Handling 2
What is the primary purpose of a pipe reamer after cutting pipe with a hacksaw?