Description : In AT welding process what is the role of asbestos powder & slag ? (i) To separate closing pin from portion* (ii) To hold the portion (iii) Both above are correct (iv) None of the above
Last Answer : (i) To separate closing pin from portion*
Description : In AT welding process what is the role of closing pin ? (i) To hold the portion before melt (ii) To hold the asbestos powder & slag (iii) Both above are correct* (iv) None of the above
Last Answer : (iii) Both above are correct*
Description : How many grams asbestos powder is used to cover head of closing pin ? (i) 2 grams (ii) 3 grams (iii) 4 grams (iv) 5 grams*
Last Answer : (iv) 5 grams*
Description : What will happen if slag is not used above the layer of asbestos powder? (i) Auto tapping* (ii) High welding (iii) Low welding (iv) Nothing will happen
Last Answer : (i) Auto tapping*
Description : Defect of Blow holes is due to? (i) Slag (ii) Moisture* (iii) Lack of heating (iv) Extra heating
Last Answer : (ii) Moisture*
Description : Function of Calcium fluoride/flour spar in portion is? (i) To separate slag* (ii) To separate aluminum (iii) To separate ferrous (iv) No separation
Last Answer : (i) To separate slag*
Description : Early tapping will cause defect of? (i) No defect (ii) Inclusion of slag* (iii) Inclusion of aluminium (iv) Inclusion of ferrou
Last Answer : (ii) Inclusion of slag*
Description : Name the material which is separated from molten steel during chemical reaction of A.T welding? (i) Aluminium oxide (slag). * (ii) Ferrous Oxide (iii) Aluminium (iv) Ferrous
Last Answer : (i) Aluminium oxide (slag). *
Description : hat action to be taken if slag is not separated within 20 ± 3 seconds? (i) Tap inside. (ii) Tap outside * (iii) Good reaction (iv) Tap well in time
Last Answer : ii) Tap outside *
Description : Crucible is repaired by? (i) Magnasite Powder (ii) Magnasite Powder & Sodium Silicate.* (iii) Sodium Silicate (iv) Aluminium powder
Last Answer : (ii) Magnasite Powder & Sodium Silicate.*
Description : 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
Last Answer : i) Good joint.*
Description : 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.
Last Answer : iii) Half moon crack in flange
Description : Marking on weld should be done (i) On centre of the rail head (ii) 10 mm below the top surface of rail head.* (iii) 10 mm above the bottom surface of rail head. (iv) None of the above
Last Answer : ii) 10 mm below the top surface of rail head.*
Description : Finished tolerance on 10 cm. long st. edge on surface of head shall be? (i) 0 to 0.1 mm (ii) 0 to 0.2 mm (iii) 0 to 0.4 mm* (iv) 0 to 0.3 mm
Last Answer : (iii) 0 to 0.4 mm*
Description : Finished tolerance on 1 Mt. long st. edge on surface of head shall be? (i) 0 to .1 mm (ii) 1 to 1.5 mm (iii) 0 mm (iv) 0 to 1 mm*
Last Answer : (iv) 0 to 1 mm*
Description : The physical quantity, which oscillates in most waves, is (i) mass (ii) energy (iii) Amplitude* (iv) wavelength
Last Answer : iii) Amplitude*
Description : The amplitude of a wave is ______. (i) the distance the wave moves in one second (ii). the distance the wave moves in one time period of the wave (iii) the maximum distance moved by the medium particles on either side of the mean position* (iv) the distance equal to one wave length
Last Answer : iii) the maximum distance moved by the medium particles on either side of the mean position*
Description : The frequency of a wave travelling at a speed of 500 ms-1 is 25 Hz. Its time period will be ______. (i) 20 s (ii) 0.05 s (iii) 25 s (iv) 0.04 s
Last Answer : (iv) 0.04 s
Description : On a branch line one new AT Weld with 00 probe shows a signal of 58 is. (i) DFWO* (ii) DFWR (iii) IMRW (iv) OBSW
Last Answer : i) DFWO*
Description : DFWR weld shall be replaced. (i) Within 2 months of detection. (ii) Within 1 year of detection. (iii) Within 3 months of detection.* (iv) after 3 days of detection.
Last Answer : (iii) Within 3 months of detection.*
Description : Marking of DFWO weld is. (i) Two red point circle on both faces of weld.* (ii) Two red point cross on both faces of weld. (iii) One red point circle on both faces of weld. (iv) None of the above.
Last Answer : i) Two red point circle on both faces of weld.*
Description : 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.
Last Answer : (ii) After passage of every 40 GMT traffic during test free period.*
Description : The gap between probing face and probing shoe should be. (i) 0.4 mm (ii) 0.2mm * (iii) 3mm (iv) 1mm.
Last Answer : (ii) 0.2mm *
Description : Sensitivity calibration against temp. variation shall be carried out. (i) At least once in month* (ii) quarterly. (iii) at least once in six months (iv) Any of above.
Last Answer : i) At least once in month*
Description : On Rajdhani routes testing frequency of rail testing for rail section of 60kg with annual GMT 80, will be. (i) 4 months (ii) 1 1⁄2 months (iii) 1 months* (iv) None of above.
Last Answer : (iii) 1 months*
Description : The increased gain of 10 dbs for single line & ‘D’ 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.
Last Answer : ii) defects in rail. *
Description : Addition gain of 10 db is used for testing. (i) ‘D’ marked rails on single lines. (ii) ‘D’ marked rails on double lines. (iii) Testing on single line and ‘D’ marked rails on double/multiple lines section.* (iv) None of above.
Last Answer : (iii) Testing on single line and ‘D’ marked rails on double/multiple lines section.*
Description : 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
Last Answer : ii) 5.7*
Description : Total no. of probes fitted on digital double rail tester for rail testing are (i) 12 (ii) 8 (iii) 14* (iv) 16.
Last Answer : (iii) 14*
Description : 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.
Last Answer : (ii) Vertical oriented defect in AT weld.*
Description : 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.
Last Answer : (ii) Area below N.axis can not be tested.*
Description : 450 probe is used for detecting defect in; (i) FB weld (ii) AT weld (iii) FB weld, AT weld & SEJ (iv) All above*
Last Answer : (iv) All above*
Description : If code of a fracture is OFW-422 then it means. (i) AT welding with transverse crack. (ii) Flash butt welding with transverse crack. (iii) At welding with horizontal crack.* (iv) None of the above.
Last Answer : (iii) At welding with horizontal crack.*
Description : What is the meaning of HAZ ? (i) Heat around Zone. (ii) Heat alongwith Zone (iii) Heat affected Zone* (iv) Heat added zero.
Last Answer : (iii) Heat affected Zone*
Description : Ignition rod can be ignited from ? (i) Match box (ii) Ignition match* (iii) From fire (iv) None of the above
Last Answer : (ii) Ignition match
Description : What is the dia of thimble ? (i) 14-16 mm (ii) 16-18 mm* (iii) 18-20 mm (iv) None of the above
Last Answer : (ii) 16-18 mm*
Description : What is the app weight of 60 kg portion ? (i) 11 kg (ii) 12 kg (iii) 13 kg* (iv) None of the above
Last Answer : (iii) 13 kg*
Description : What is the app. Weight of 52 kg portion? (i) 10 kg (ii) 11 kg* (iii) 12 kg (iv) None of the above
Last Answer : (ii) 11 kg*
Description : Trimming of AT weld should be done by ? (i) Chisel (ii) Trimmer* (iii) Both (iv) None of the above
Last Answer : ii) Trimmer*
Description : After how much time lining of crucible should be changed ? (i) After every weld (ii) After 7 welds (iii) After every 10 welds* (iv) None of the above
Last Answer : (iii) After every 10 welds*
Description : USFD testing of new AT weld will be done by ? (i) JE/SSE sectional (ii) Incharge SSE (iii) USFD machine operator* (iv) None of the above
Last Answer : (iv) None of the above
Description : After declare good in USFD testing what is the joggling criteria ? (i) Joggle will be open from the AT weld* (ii) Joggling with two far end bolting (iii) joggling with four tight bold (iv) None of the above
Last Answer : (i) Joggle will be open from the AT weld*
Description : What is the testing frequency of new AT weld ? (i) Just after the welding (ii) After 7 days of welding (iii) With in the one month of welding* (iv) None of the above
Last Answer : iii) With in the one month of welding*
Description : Till USFD testing of new AT weld what is criteria for joggling ? (i) Joggling with two far end bold (ii) Joggling with two tight clamps* (iii) Leave without joggling till its testing (iv) None of the above
Last Answer : (ii) Joggling with two tight clamps*
Description : In how many time final grinding should be done of new AT weld ? (i) Just after the welding (ii) After 8 hrs of welding (iii) With in 24 hrs* (iv) None of the above
Last Answer : iii) With in 24 hrs*
Description : In how many time rough riding should be done of new AT weld ? (i) Just after the welding* (ii) After 8 hrs of welding (iii) After 24 hrs (iv) None of the above
Last Answer : i) Just after the welding*
Description : New AT weld should be entered in TMS by ? (i) Sectional JE/SSE* (ii) Incharge SSE (iii) Welder (iv) None of the above
Last Answer : (i) Sectional JE/SSE*
Description : How many detonators are planted during protection of track for welding site ? (i) One (ii) Two (iii) Three* (iv) None of the above
Last Answer : iii) Three*
Description : Distance between the two detonators should be (i) 15 Mt. (ii) 10 Mt.* (iii) 20 Mt (iv) None of the above
Last Answer : (ii) 10 Mt.*
Description : Ist detonator is planted at a distance of (i) 1200 Mt. from welding site .* (ii) 600 mtrs from welding site (iii) 30 mtrs from welding site (iv) None of the above
Last Answer : (i) 1200 Mt. from welding site .*