If digital DRT is calibrated for 300 mm longitudinal wave using 00 double crystal probe then 60kg rail ---------peak will appear at (i) 5.2 (ii) 5.7* (iii) 7.8 (iv) 8.6 Answer : ii) 5.7*...
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. *...
For rolling mark 60 kg/Sail/X/2010 the first testing in the field after initial testing of rails in rail manufacturing plant, will be done. (i) After test free period of 25%. (ii) After passage of every 40 ... period.* (iii) After passage of 200 GMT. (iv) On the basis of annual GMT of the section. Answer : (ii) After passage of every 40 GMT traffic during test free period.*...
On Rajdhani routes testing frequency of rail testing for rail section of 60kg with annual GMT 80, will be. (i) 4 months (ii) 1 1ā2 months (iii) 1 months* (iv) None of above. Answer : (iii) 1 months*...
Addition gain of 10 db is used for testing. (i) āDā marked rails on single lines. (ii) āDā marked rails on double lines. (iii) Testing on single line and āDā marked rails on double/multiple lines section.* (iv) None of above. Answer : (iii) Testing on single line and āDā marked rails on double/multiple lines section.*...
50.5k questions
47.1k answers
240 comments
7.0k users
