Answer Key: Self-Test B-2.4

  1. b. 3 mm (1⁄8 in.)
  2. c. Eye and hearing protection
  3. a. In a clockwise direction
  4. d. Reduce strain caused by the flanges
  5. c. Dress the face of the wheel
  6. b. Standing or suspended on edge
  7. Check to make sure that the switch is in the Off position, and that the foot switch operates freely.
  8. Before plugging in the machine, push down on the switch button a couple of times to make sure that the spring of the switch button returns to the Off position.
  9. a. Three-wire extension cord, which has a three-prong grounding plug that fits into a three-pole receptacle
  10. b. False—for long, heavy work, a floor pipe support must be used.
  11. a. Cutter
    b. Reamer
    c Quick or self-opening die head
    d. Carriage w/lever
    e. Lever arm
  12. Measure and mark the length of the pipe being worked.
  13. The jaws are tightened with a snap-spin of the hand wheel in a counter clockwise direction. The snap-spin is repeated until the operator is sure the pipe is held securely.
    1. Engage the pipe cutter with the pipe, and align the cutter wheel with the mark you have made when measuring the pipe.
    2. Rest the frame of the pipe cutter on the support bar. Tighten the screw feed handle.
  15. b. The straight reamer
    1. Turn the switch to the Forward position.
    2. Insert the reamer into the end of the pipe, holding the handle and handgrip firmly.
    3. Step on the foot switch.
    4. Slowly push on the reamer handgrip with one hand.
    5. Release the foot switch, remove the reamer, and turn the switch to the Off position.
    1. Move the reamer arm down to the reaming position.
    2. Extend the reamer by pressing the latch and sliding the knob toward the pipe until the latch engages the bar.
    3. Turn the switch to the Forward position and step on the foot switch.
    4. Position the reamer into the pipe and complete the reaming operation by pushing the carriage lever with your hand.
    5. Pull the reamer bar back and return it to its out-of-the-way position.
    6. Release the foot switch and turn the switch to the Off position.
    7. Release the speed chuck hand wheel and the centring head from the pipe.
    8. Remove the pipe.
  18. False
  19. False
  20. True
  21. Check the pipe to make sure that:
    1. The ends are squarely cut
    2. The pipe fits smoothly on the driving roll
    3. Steps have been taken to grind down any internal or external weld beads or seams that may interfere with the grooving operation
    4. Burrs, coarse scale, rust, and other irregularities have been removed.
  22. The stand is positioned in line with the axis of the driving roll and three-quarters of the pipe length away from the driving roll flange.
  23. First, fit the pipe on the driving roll so that the end of the pipe is against the flange of the driving roll. Next, after making adjustments to the support stand (if used), adjust the pipe so that it is in contact with the roll flange on one side only.

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Block B: Tools and Equipment Copyright © 2026 by Skilled Trades BC, TRU Open Press is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License, except where otherwise noted.

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