The increased gain of 10 dbs for single line & āDā marks rails on double/multiple lines
shall be employed for classification of defects.
(i) defect in weld
(ii) defects in rail. *
(iii) for both defects on weld & rail.
(iv) None of above.
shall be employed for classification of defects.
(i) defect in weld
(ii) defects in rail. *
(iii) for both defects on weld & rail.
(iv) None of above.