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 : 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 : 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 : How much rail ends are cleaned with Kerosene Oil and steel wire brush? (i) Minimum 100 mm both side (ii) Minimum 50 mm both side.* (iii) No need (iv) As decided by site supervisor
Last Answer : (ii) Minimum 50 mm both side.*
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 : 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 : 65- Grade of 72 UTS rail is? (i) 880 (ii) 1080 (iii) 710* (iv) None of above
Last Answer : (iii) 710*
Description : Grade of 110 UTS rail is? (i) 880 (ii) 1080* (iii) 710 (iv) None of above
Last Answer : (ii) 1080*
Description : Grade of 90 UTS rail is? (i) 880* (ii) 1080 (iii) 710 (iv) None of above
Last Answer : i) 880*
Description : Which gauge is used to measure the height of rail at the time of aligning of rails for AT welding? (i) Height gauge.* (ii) Vertical gauge (iii) Horizontal gauge (iv) As decided by site supervisor
Last Answer : (iv) As decided by site supervisor
Description : Colour of rail ends becomes after preheating ? (i) Golden * (ii) Pink Red (iii) Red (iv) Yellow
Last Answer : (i) Golden
Description : To take care of differential cooling rail ends of 72 UTS rails are lifted by? (i) 1 to 1.5 mm (ii) 1 to 2 mm (iii) 2 to 2.5 mm (iv) 3 to 4 mm *
Last Answer : iv) 3 to 4 mm *
Description : To take care of differential cooling rail ends of 90 UTS rails are lifted by? (i) 1 mm (ii) 2 mm (iii) 2 to 2.2 mm.* (iv) 1 to 2 mm
Last Answer : (iii) 2 to 2.2 mm.*
Description : What is Pre Heating Temperature of rail ends in AT Welding? (i) 300 ± 20oC (ii) 400 ± 20oC (iii) 500 ± 20oC (iv) 600 ± 20oC *
Last Answer : (iv) 600 ± 20oC *
Description : In new Rail as well as second hand rails how much end bends of the rails in vertical are permitted when checked with one meter straight edge before welding? (i) +0.5mm, -0 mm in vertical * (ii) +0.2mm, -.3 mm in vertical (iii) +0.3mm, -2 mm in vertical (iv) 0 mm, +.5 mm in vertical
Last Answer : (i) +0.5mm, -0 mm in vertical *
Description : nternal diameter of thimble in conventional type of crucible is? (i) 14-16 mm (i) 16-18 mm (iii) 18-20 mm* (iv) 20-22 mm
Last Answer : (iii) 18-20 mm*
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 : 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 : 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 : What is the difference between rail flange of 60 kg & 52 rail section a. 20 mm b. 18 mm c. 14 mm* d. 16 mm
Last Answer : c. 14 mm
Description : What is the Shelf life of mould ? (i) 6 months minimum. (ii) 8 months minimum (iii) 9 months minimum* (iv) 12 months minimum
Last Answer : (iii) 9 months minimum*
Description : Torch is kept at height from top surface of rail head? (i) 30 to 55 mm (ii) 35 to 40 mm (iii) 40 to 45 mm
Last Answer : (iii) 40 to 45 mm
Description : In new Rail as well as second hand rails how much end bends of the rails in lateral direction are permitted when checked with one metre straight edge before welding? (i) ± 0.2 mm in lateral direction (ii) ± 0.3 mm in lateral direction (iii) ± 0.5 mm in latera
Last Answer : (iii) ± 0.5 mm in latera
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 : Minimum permissible vertical wear on nose of a 52 kg CMS crossing on Rajdhani route is i) 6mm ii) 8mm* iii) 10mm iv) 12 mm
Last Answer : ii) 8mm*
Description : 2. Arrange the following fractions in ascending order:(i) \( \frac{3}{8}, \frac{5}{6}, \frac{6}{8}, \frac{2}{4}, \frac{1}{3} \)(ii) \( \frac{4}{6}, \frac{3}{8}, \frac{6}{12}, \frac{5}{16} \)3. Arrange the ... ( \frac{23}{3} \) and 6(iii) \( \frac{18}{20} \) and \( \frac{21}{25} \)(iv) \( 3 \frac{3
Last Answer : 2. Arrange the following fractions in ascending order: (i) \( \frac{3}{8}, \frac{5}{6}, \frac{6}{8}, \frac ... frac{3}{10} \) and \( 2 \frac{7}{15} \)
Description : What is full form of SPURT car a. Self propelled ultrasonic rail testing car* b. Self pulled united rail testing car c. Self pumped universal testing car d. None of above
Last Answer : a. Self propelled ultrasonic rail testing car*
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 : Pressure of Oxygen during pre-heating shall be? (i) 4.0 – 5.0 kg/ sq cm (ii) 5.0 – 6.0 kg/ sq cm (iii) 6.0 – 7.0 kg/ sq cm (iv) 7.0 – 8.0 kg/ sq cm *
Last Answer : (iv) 7.0 – 8.0 kg/ sq cm *
Description : 32 kmph 11.What is the weight per meter length of 52 kg Rail? a. 54.14 kg b. 50.25 kg c. 51.89 kg* d. 53.85 kg
Last Answer : c. 51.89 kg*
Description : Weather date of welding is marked on weld? (i) Yes (ii) As decided by the site supervisor (iii) No* (iv) None of the above
Last Answer : (iii) No*
Description : No of Ingredient of Portion are? (i) Five. (ii) Six (iii) Seven* (iv) Eight
Last Answer : (iii) Seven*
Description : Weather traffic block is required for execution of AT Welding? (i) Yes.* (ii) No (iii) As decided by site supervisor (iv) As per site condition
Last Answer : (i) Yes.
Description : Weather protection of track is required during block for execution of AT Welding? (i) Yes.* (ii) No (iii) As decided by site supervisor (iv) As per site condition
Last Answer : (i) Yes.*
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 : During AT welding reaction is ? (i) Exothermic .* (ii) Endothermic (iii) No Reaction (iv) Heating
Last Answer : (i) Exothermic .*
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.*