Match the NDT methods with the type of defects detected.
Match the NDT methods with the type of defects detected.
Correct Answer <table class="table-style-1"> <tr> <td><strong>NDT methods</strong></td> <td><strong>Type of defects detected</strong></td> </tr> <tr> <td>P. Ultrasonic</td> <td>1. Internal</td> </tr> <tr> <td>Q. X-ray</td> <td>2. Most</td> </tr> <tr> <td>R. Eddy current</td> <td>3. External</td> </tr> <tr> <td>S. Liquid penetrant</td> <td>4. Surface breaking</td> </tr></table> P-1, Q-2, R-3, S-4