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    Trade & Technology
  3. Study Set
    Welding Principles and Applications
  4. Exam
    Exam 18: Gas Tungsten Arc Welding of Pipe
  5. Question
    Explain How to Compute the Flow Time Necessary for Backing
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Explain How to Compute the Flow Time Necessary for Backing

Question 16

Question 16

Essay

Explain how to compute the flow time necessary for backing gas to purge a pipe of air.

Correct Answer:

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First, estimate the interior volume of t...

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