Answer Key: Self-Test D-2.1

  1. a. Ball
  2. c. Backwater valve
  3. b. Butterfly valve
  4. c. Pressure relief valve
  5. c. Stainless steel
  6. c. Basic steam working pressure
  7. a. Pneumatic
  8. b. Manually operated wafer lug butterfly valve
  9. c. Wafer disk check
  10. b. Yoke
  11. d. Disk
  12. a. Stem
  13. c. Packing

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Block D: Piping and Components 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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