Exam (elaborations)
PLUMB: 301 – 350 Exam Questions with 100% Correct Answers
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The interior bottom surface of a pipe. Correct Answer Invert Color code for pipes containing acid. Correct Answer black "One of the earlier plastic to be developed in 1938, a du pont trade name for the white, soft, waxy, and non-adhesive polymer of tetrafluoroethylene." Correct Answer Teflon ...
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