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 : When the steel is subjected to normalising, its __________ decreases. (A) Yield point (B) Ductility (C) Ultimate tensile strength (UTS)
Last Answer : (B) Ductility
Description : Which of the following has the least value of ultimate tensile strength (UTS)? (A) Medium carbon steel (B) High carbon steel (C) Cast iron (D) Wrought iron Answer: Option C
Last Answer : (C) Cast iron
Description : With increasing carbon percent in steel beyond 0.8%, its ultimate tensile strength (UTS) and __________ is not affected. (A) Impact strength (B) Percent elongation (C) Hardness (D) Both 'b' & 'c'
Last Answer : (A) Impact strength
Description : Which of the following has the least value of ultimate tensile strength (UTS)? (A) Medium carbon steel (B) High carbon steel (C) Cast iron (D) Wrought iron
Last Answer : Option B
Description : Loading capacity of chain drive system is based on a) Rate of wear b) Ultimate strength of chain material c) None of (a) and (b) d) Both (a) and (b)
Last Answer : a) Rate of wear
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 : The colour of bag containing Portion for 110 UTS ? (i) Red (ii) Green (iii) Pink (iv) Black*
Last Answer : iv) Black*
Description : he colour of bag containing Portion for 90 UTS ? (i) Red (ii) Green * (iii) Pink (iv) Black
Last Answer : ii) Green *
Description : The colour of bag containing Portion for 72 UTS ? (i) Pink (ii) Green (iii) Red * (iv) Black
Last Answer : (iii) Red *
Description : Track structure for CC+8 t+ 2 t loaded trains is:- (a) 52 Kg 90 UTS;PSC 1540 sleepers/ Km.; 250 mm ballast. (b) 60 Kg 90 UTS;PSC 1660 sleepers/ Km.; 300 mm ballast.* (c) 52 Kg 72 UTS;PSC 1540 sleepers/ Km.; 300 mm ballast. (d) 90 R;PSC 1340 sleepers/ Km.; 250 mm ballast.
Last Answer : b) 60 Kg 90 UTS;PSC 1660 sleepers/ Km.; 300 mm ballast.*
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 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 : 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 : Le Chatelier apparatus is used to determine which of the following properties for cement A) Soundness* b) Initial setting time c) Compressive strength d) Tensile strength
Last Answer : A) Soundness*
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 : 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 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 : 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 : 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 : 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 : In case of Shot Welded Rails the fish plated joint should be avoided on Level Crossings within a distance of --------- from end of level crossing a) 3 meters b) 4 meters c) 5 meters d) 6 meters*
Last Answer : d) 6 meters*
Description : The minimum and maximum clearances of check rails at all BG level crossings shall be a) 51 to 57 mm* b) 44 to 48 mm c) 41 to 45 mm d) 55 to 70 mm
Last Answer : a) 51 to 57 mm*
Description : Fish plated joint shall be avoided in check raisl and on the running rails within--------- from the end of level crossing a) 3 meters* b) 5 meters c) 10 meters d) 12 meters
Last Answer : a) 3 meters*
Description : Length of guard rails to be bent so as to be brought together at the middle of the track.(L2) a) 3200 mm b) 4875 mm* c) 3655 mm d) None of the above
Last Answer : b) 4875 mm*
Description : The load transferred from rails to web of girders is in a) deck type girder b) through type girder c) semi-through type girder* d) plate girder
Last Answer : c) semi-through type girder*
Description : The load transferred from rails to bottom flanges is in a) deck type girder b) through type girder* c) semi-through type girder d) plate girder
Last Answer : b) through type girder*
Description : Minimum clearance of check rails for B.G. at level crossing should be (a) 48mm (b) 57mm (c) 51mm* (d) 44mm
Last Answer : (c) 51mm*
Description : On B.G. maximum clearances of check rails at a level crossing are (a) 51 mm (b) 57mm* (c) 65mm (d) 70mm
Last Answer : (b) 57mm*
Description : Check rails should normally be provided where the radius is …. M or less in B.G. (a) 150m (b) 200m (c) 218m* (d) 240m
Last Answer : (c) 218m*
Description : Maximum clearance of check rails at level crossing for B.G. should be (a) 48mm (b) 57mm* (c) 51mm (d) 44mm
Description : On B.G. maximum clearances of check rails at a level crossing are (a) 51mm ( b ) 57mm* (c) 65mm (d) 54mm
Last Answer : ( b ) 57mm*
Description : Check rails should normally be provided where the radius is ……. M or less in B.G. (a) 150m (b) 200m (c) 208m* (d) 225m
Last Answer : (c) 208m*
Description : Vertical wear permissible for 60kg/90UTS. rails is:- (a) 23 mm. (b) 10 mm. (c) 13 mm.* (d) 15 mm.
Last Answer : (c) 13 mm.
Description : Clear perpendicular distance between inner faces of two rails is a. Gauge of track* b. Inner gauge c. Wheel base d. Wheel gauge
Last Answer : a. Gauge of track*
Description : Tilting of rails is done at a slope of a. 1 in 30 b. 1 in 25 c. 1 in 20* d. 1 in 15
Last Answer : c. 1 in 20*
Description : Cast iron has (A) Very high tensile strength (B) High ductility (C) High malleability (D) Elastic limit close to ultimate breaking strength
Last Answer : (D) Elastic limit close to ultimate breaking strength
Description : Cast iron has (A) High ductility (B) High malleability (C) Very high tensile strength (D) Its elastic limit very close to ultimate breaking strength
Last Answer : (D) Its elastic limit very close to ultimate breaking strength
Description : Failure of a material is termed as fatigue failure, if it fails below the yield point. The resistance to fatigue failure of a material is measured by the (A) Ultimate tensile strength (U.T.S.) (B) Endurance limit (C) Elastic limit (D) None of these
Last Answer : (B) Endurance limit
Description : Cast iron is having very high (A) Proximity between its elastic limit and ultimate breaking strength (B) Ductility (C) Tensile strength (D) All (A), (B) and (C)
Last Answer : (A) Proximity between its elastic limit and ultimate breaking strength
Description : When a material is subjected to fatigue loading, the ratio of the endurance limit to the ultimate tensile strength is (a) 0.20 (b) 0.35 (c) 0.50 (d) 0.65
Last Answer : (c) 0.50
Description : Factor of safety for fatigue loading is the ratio of (a) elastic limit to the working stress (b) Young's modulus to the ultimate tensile strength (c) endurance limit to the working stress (d) elastic limit to the yield point
Last Answer : (c) endurance limit to the working stress
Description : The resistance to fatigue of a material is measured by (a) elastic limit (b) Young's modulus (c) ultimate tensile strength (d) endurance limit
Last Answer : (d) endurance limit