Tandem rig test with 450 probe for AT weld detects. (i) Horizontal longitudinal defect in weld. (ii) Vertical oriented defect in AT weld.* (iii) Transverse defect in AT weld. (iv) Defect in flange of AT welds. Answer : (ii) Vertical oriented defect in AT weld.*...
Side looking 700 2MHZ probe is tested for detecting. (i) Flaw in head (ii) Flaw in web (iii) Half moon crack in flange.* (iv) For all above. Answer : iii) Half moon crack in flange...
By 00 probe in AT weld testing with normal gain setting. (i) Area below N.axis can be tested. (ii) Area below N.axis can not be tested.* (iii) Only web below N.axis can be tested. (iv) All above are correct. Answer : (ii) Area below N.axis can not be tested.*...
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. Answer : ii) defects in rail. *...
During periodic testing of an AT weld with 700 probe, a bunch of moving signals of less than 40% but more than 10% is observed in the head of weld, the joint will be. (i) Good joint.* (ii) DFWR (iii) DFWO (iv) OBSW Answer : i) Good joint.*...
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