It is possible for a discontinuity smaller than the transducer to produce indications of fluctuating amplitude as the search unit is moved laterally if testing is being performed in the:

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Q. It is possible for a discontinuity smaller than the transducer to produce indications of fluctuating amplitude as the search unit is moved laterally if testing is being performed in the:

(A) Fraunhofer zone

(B) Near field

(D) Shadow zone

Correct Answer - Option(B)
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Filed under category Non Destructive Testing and Evaluation

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Q. It is possible for a discontinuity smaller than the transducer to produce indications of fluctuating amplitude as the search unit is moved laterally if testing is being performed in the:

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