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Which of the following are considered applications of ultrasonic testing?

A. Determination of elastic constant

B. Detection of defects in metal

C. Measurement of material thickness

D. None of the above

Please do not use chat terms. Example: avoid using "grt" instead of "great".

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  10. Electrometallurgy is not involved in the extraction of __________ from its ore.
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  19. Which one is neutral in character?
  20. If a solid is compressed adiabatically in its elastic range, its __________ remains constant
  21. At absolute zero temperature, for any reaction involving condensed phases
  22. What happens, when SO2 is passed through a solution of H2S in water?
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  24. Thermal equivalent of electrical power in practical calculation is __________ kcal/kWh.
  25. What is the critical radius of insulation (cms) for a metallic cylinder, if the convective heat transfer…
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