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Mr. Dubey • 100.64K Points
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Q. When conducting an immersion test, the water path distance must be controlled so that:

  • (A) Spurious signals are not created by surface waves on the test piece
  • (B) The (water path distance)/(diameter) ratio does not result in asymmetric standing waves
  • (C) The test piece discontinuity indications appear between the first front and first back surface echos
  • (D) The second front surface echo does not appear on the CRT screen between the first front and first back surface echos
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