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 GMT traffic during test free period.*
(iii) After passage of 200 GMT.
(iv) On the basis of annual GMT of the section.

1 Answer

Answer :

(ii) After passage of every 40 GMT traffic during test free period.*

Related questions

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 : Minimum rail section recommended for section having traffic more than 20 GMT is (a) 90 UTS (b) 52 Kg. (c) 60 Kg.* (d) None of the above.

Last Answer : (c) 60 Kg.

Description : Service life of improved SEJ of 60 Kg rail is:- (a) 400 GMT. (b) 300 GMT. (c) 200 GMT.* (d) 150 GMT.

Last Answer : (c) 200 GMT.

Description : Service life of Glued insulated rail joint of 60 Kg rail is:- (a) 300 GMT. (b) 200 GMT.* (c) 400 GMT. (d) 150 GMT.

Last Answer : (b) 200 GMT.

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 : Service life of CMS crossing ( 52 Kg rail) is:- (a) 400 GMT. (b) 300 GMT. (c) 200 GMT. (d) 150 GMT.*

Last Answer : (d) 150 GMT.*

Description : What is the assessed GMT service life of 60 kg 90 UTS rail? a. 650 GMT b. 600 GMT c. 800 GMT* d. 500 GMT

Last Answer : c. 800 GMT*

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 : 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 : 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 : Service life in terms of total GMT carried for 52 kg. 90 UTS rail is:- (a) 425 GMT (b) 475 GMT (c) 525 GMT* (d) 545 GMT

Last Answer : (c) 525 GMT*

Description : What is the assessed GMT service life of 52 kg 90 UTS rail. a. 650 GMT b. 600 GMT c. 525 GMT* d. 500 GMT

Last Answer : c. 525 GMT*

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 : 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 : 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 : 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 : 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 width of Head of 52 kg Rail section a. 70 mm b. 75 mm c. 67 mm* d. 60 mm

Last Answer : c. 67 mm*

Description : What is the height of 60 kg rail section? a. 180 mm b. 172 mm* c. 185 mm d. 165 mm

Last Answer : b. 172 mm*

Description : Minimum traffic block required for execution of AT Weld ? (i) 70 minutes (ii) 70-75 minute.* (iii) 60 mints (iv) 1 hrs and 30 mints

Last Answer : (ii) 70-75 minute.*

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 : 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 : Colour of rail ends becomes after preheating ? (i) Golden * (ii) Pink Red (iii) Red (iv) Yellow

Last Answer : (i) Golden

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 : Height of crucible is kept from top surface of mould? (i) 30 mm (ii) 40 mm (iii) 50 mm* (iv) 60 mm

Last Answer : (iii) 50 mm*

Description : Level crossing is classified on the basis of a) Class of road b) TVU* c) Volume of road traffic d) Volume of rail traffic

Last Answer : b) TVU*

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 : 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 : 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 : 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 : 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 : Sleeper density for group ‘A’ route with traffic density more than 20 GMT is:- (a) 1560 sleepers/ Km. (b) 1660 sleepers/ Km.* (c) 1540 sleepers/ Km. (d) 1340 sleepers/ Km.

Last Answer : (b) 1660 sleepers/ Km.*

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 : 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 : 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 : ressure of LPG during pre-heating shall be? (i) 2.0 - 2.5 kg/ sq cm (ii) 2.0 - 2.5 kg/ sq cm (iii) 2.0 - 2.5 kg/ sq cm* (iv) 2.0 - 2.5 kg/ sq cm

Last Answer : (iii) 2.0 - 2.5 kg/ sq cm*

Description : Pressure of compressed air is kept during preheating by CAPS? (i) 1 to 2 kg/cm2 (ii) .1 to .2 kg/cm2 (iii) 2 to 3 kg/cm2 (iv) 0.2 to 0.3 kg/cm2*

Last Answer : (iv) 0.2 to 0.3 kg/cm2*

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 : 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 : What is the duration for Initial course for welders (TW-1)? (i) Two weeks* (ii) One week (iii) As decided by TPP/LKO (iv) 3 working days

Last Answer : (i) Two weeks*

Description : .What do you mean by 60 kg rail a. Weight of rail in 1 meter* b. Area of rail of 1 meter c. Weight of rail in 1 feet d. Volume of rail in 1 meter

Last Answer : a. Weight of rail in 1 meter*

Description : Frequency of TTM tamping on PSC sleepers track a. 2 years or 100 GMT which ever is earlier* b. 2 years or 150 GMT which ever is earlier c. 1.5 years or 200 GMT which ever is earlier d. 2 years or 175 GMT which ever is earlier

Last Answer : a. 2 years or 100 GMT which ever is earlier*

Description : Last flag man is deputed at which distance from last detonator during protection of welding site . (i) 30 mts (ii) 50 mts (iii) 45 (iv) 60 mts

Last Answer : (iv) 60 mts

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.*