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.

1 Answer

Answer :

(iii) Testing on single line and ‘D’ marked rails on double/multiple lines section.*

Related questions

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 : 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 : 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 : 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 : 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 : Rails used for A T Welding shall not normally be welded? (i) 20 years old . (ii) 30 years old (iii) 40 years old (iv) 50 years old*

Last Answer : iv) 50 years old*

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 : What are the recognized systems for pre heating of rails ends for AT Welding? (i) Oxygen –LPG & Compressed air petrol both* (ii) Only Oxygen –LPG (iii) Only Compressed air petrol both (iv) both are correct

Last Answer : ) Oxygen –LPG & Compressed air petrol both*

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 : 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 : The number of standard rails (13 m) for one km. BG section single line section is (a) 120 (b) 154* (c) 168 (d) 196

Last Answer : (b) 154*

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 : 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 : 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 : 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 : 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 : How rejected portion are to be disposed-off? (i) By Igniting 5 Portions at a time in pit away from store?* (ii) By throwing them away (iii) By dispose off in a pit (iv) By using it in Branch/Yard lines for welding

Last Answer : (i) By Igniting 5 Portions at a time in pit away from store?*

Description : “B” class station is provided only on (a) Single lines (b) Double line (c) On both single as well as double line* (d) None of them

Last Answer : c) On both single as well as double line*

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 : Formation width for bank for B.G. double line section is (a) 10.82 m (b) 11.0 m (c) 11.58 m (d) 12.155 m*

Last Answer : (d) 12.155 m*

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 : 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 : 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 : 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 : Painting of weld is done up to (i) 10 CM minimum both side of weld & on welded surface .* (ii) 15 CM minimum both side of weld & on welded surface (iii) 20 CM minimum both side of weld & on welded surface (iv) None of the above

Last Answer : (i) 10 CM minimum both side of weld & on welded surface .*

Description : Minm. deflection during transverse breaking load test is? (i) 5 mm (ii) 10 mm (iii) 15 mm* (iv) 20 mm

Last Answer : (iii) 15 mm*

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 10 cm long st. edge at the centre on gauge side shall be? (i) ± 0.4 mm (ii) ± 0.1 mm (iii) ± 0.2 mm (iv) ± 0.3 mm*

Last Answer : iv) ± 0.3 mm*

Description : Finishing tolerances are measured by? (i) On 30 cm scale (ii) 1 MT straightedge or 10 CM straightedge.* (iii) On 15 cm straight edge (iv) On 30 cm straight edge

Last Answer : (ii) 1 MT straightedge or 10 CM straightedge.*

Description : What is the validity after supervisors course (TW-3)? (i) Normally, supervisors shall not be required to undergo the course again. However, they may be sent for course on performance basis.* (ii) 2 years (iii) 5 Years (iv) 10 Years

Last Answer : (i) Normally, supervisors shall not be required to undergo the course again. However, they may be sent for course on performance basis.*

Description : The centre to centre spacing formation width for double line section is (a) 4725 mm (b) 5025 (c) 5330* (d) 5500

Last Answer : c) 5330*

Description : Formation width for bank for M.G. double line section is (a) 8.50 m (b) 8.84 m (c) 9.65 m (d) 9.81 m*

Last Answer : (d) 9.81 m*

Description : In case of a curved track on electrified, double line, BG section a) Duty hut cannot be provided for a level crossing. b) Duty hut should be on the inside of the curve. c) Duty hut should be on the outside of the curve.* d) Duty hut can be provided on any side of the curve.

Last Answer : c) Duty hut should be on the outside of the curve.*

Description : Formation width for banks for B.G. single line section is (a) 6.10 m (b) 6.50 m (c) 6.85 m* (d) 7.0 m

Last Answer : (c) 6.85 m*

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 : 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 : 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 : 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 : 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 : 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*