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M

Mr. Dubey • 100.69K Points
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Q. The technique or method to absorb undesirable sounds by soft and porous

  • (A) Acoustic protection
  • (B) Unacoustic protection
  • (C) Audible protection
  • (D) Decibel protection
  • Correct Answer - Option(A)
  • Views: 673
  • Filed under category Dynamics of Machinery
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