At locations where access to the new bridge construction is available by rail, the launching  of girders upto 18.3 m which method is ideal.
a) slew in slew out method b) gantry method  
c) Launching of girders with the help of a BFR*:
d) Pantoon method

1 Answer

Answer :

c) Launching of girders with the help of a

Related questions

Description : Rail Cluster, as temporary arrangement can be used upto a span of a) 3.66m* b) 6.1m c) 12.2m d) 18.3 m

Last Answer : a) 3.66m*

Description : In shallow type girders, the rail level shall be a) 25mm above the top flange of girder* b) near the bottom of the girder c) near the middle of the girder d) below the girder

Last Answer : a) 25mm above the top flange of girder*

Description : When proposed depth of construction of a bridge is more than the existing depth of construction in a bridge work, the existing rail level requires a) Lowering b) Lifting* c) Slewing d) None

Last Answer : b) Lifting*

Description : A bridge having super structure with “Single or duplicate girders with cross sleepers on top flanges” is classified as a) RSJ girder bridge b) Cross Girder c) Deck plate girder* d) Open web girder

Last Answer : c) Deck plate girder*

Description : Rail joints should be avoided within ……………of a bridge abutment. a) 6 m b) 3 m* c) 4 m d) 10 m

Last Answer : b) 3 m*

Description : n Girder and Slab Bridges Danger level should be marked below bottom of girders/slabs for water way is > 12.20 < 30.5 m a) 300 mm b) 600 mm* c) 500 mm d) 450 mm

Last Answer : b) 600 mm*

Description : In Girder and Slab Bridges Danger level should be marked below bottom of girders/slabs for water way is > 6.10 < 12.2 m a) 300 mm b) 600 mm c) 450 mm* d) 500 mm

Last Answer : c) 450 mm*

Description : In incremental launching method of bridge construction, what are the measures adopted to enhance sufficient resistance of the superstructure during the launching process?

Last Answer : i) During the launching process the leading edge of the superstructure is subject to a large hogging moment. In this connection, steel launching nose typically about 0.6­0.65 times span length is ... . iii)For very long span bridge, temporary piers are provided to limit the cantilever moment.

Description : The vertical clearance of bottom most foot over bridge structure above rail level is a) 6525 mm* b) 3660 mm c) 5330 mm d) 6250 mm

Last Answer : a) 6525 mm*

Description : The size of bridge timber required for the standard spans up to 18.3 m a) 250 x 150mm*. b) 250 x 180mm. c) 250 x 240mm d) 250 x 200mm

Last Answer : a) 250 x 150mm*.

Description : Under slung girders can be used in a) Plain section b) Ghat section* c) Aquaduct d) Viaduct

Last Answer : b) Ghat section*

Description : riodicity of recording of camber in PSC girders a) Once in a year* b) Once in two years c) Once in three years d) During the detailed inspection of SE/Br.

Last Answer : a) Once in a year*

Description : For railway bridges with spans in excess of 30.5m, generally provided with a) deck type girders b) open web through girders* c) semi through girders d) shallow type girders

Last Answer : b) open web through girders*

Description : Bearings for plate girders are -- a) roller bearing b) sliding bearings c) centralised articulated bearings* d) None of the above

Last Answer : c) centralised articulated bearings*

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 : Periodical inspection of PSC & Composite girders a) Once in 3 years b) Once in 5 years * c) Once in 2 years d) Once in 5 years

Last Answer : b) Once in 5 years *

Description : Periodical inspection of Welded girders a) Once in 3 years b) Once in 3 years* c) Once in 2 years d) Once in 5 years

Last Answer : b) Once in 3 years*

Description : Initial inspection for PSC girders / Welded girder bridges as per IRBM 1998 a) Within one year of installation* b) Once in 3 years d) Once in 2 years d) Once in 5 years

Last Answer : a) Within one year of installation*

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 : The temporary girders are generally required for the bridge works a) on traffic condition* b) under mega block c) in cut and open method d) in new route

Last Answer : a) on traffic condition*

Description : Which of the following stone is best suited for construction of piers and abutments of Railway Bridge a) Granite* b) Sandstone c) Limestone d) Quartzite

Last Answer : a) Granite*

Description : A level crossing qualifies for construction of Road Over Bridge/ Under Bridge on Cost sharing basis with State Government when the Train Vehicle Unit is more than a) 50,000 b) 1, 00,000* c) 3, 00,000 d) 5, 00,000

Last Answer : b) 1, 00,000*

Description : Depth of construction in a girder bridge means the depth from a) RL to HFL b) RL to top of bed block * c) RL to bottom of bed block d) RL to Bed level

Last Answer : b) RL to top of bed block *

Description : A new railway line is required to be constructed beaus’ of following reasons (a) Strategic and political considerations (b) Development of backward area (c) To shorten existing rail link (d) Any of them*

Last Answer : d) Any of them*

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 : Minimum clearance between toe of Open switch and stock rail for new works a. 115 mm* b. 120 mm c. 95 mm d. 110 mm

Last Answer : a. 115 mm*

Description : In case of LWR track, full ballast section as specified in LWR Manual should be provided up to ……….. from the bridge abutment. a) 200 m b) 50 m c) 300 m d) 100 m*

Last Answer : d) 100 m

Description : The minimum cushion specified over an arch bridge is -- a) 0.5m b) 0.9m c) 1.0m* d) 1.2 m

Last Answer : c) 1.0m*

Description : In a temporary signaling arrangements for a bridge work in BG section, speed board shall be placed in advance of 30 m from the a) C.L. of the bridge b) Termination Board c) Start of the bridge/work spot* d) Caution Board

Last Answer : c) Start of the bridge/work spot*

Description : Minimum Free Board required in a bridge is a) 1 m* b) 1.20 m c) 600 mm d) 300 mm

Last Answer : a) 1 m*

Description : .In a temporary signaling arrangements for a bridge work in BG section, caution board shall be placed in advance of ……. m from start of the bridge/ work spot. a) 30 m b) 1200 m* c) 677 m d) 1000 m

Last Answer : b) 1200 m*

Description : Height of platform of a flag station in cutting above rail level is (a) Same height as Rail level (b) 305 mm above rail level (c) 455 mm above rail level (d) 840mm above rail level*

Last Answer : (d) 840mm above rail level*

Description : For ‘B’ category stations as per minimum essential facility it is necessary to provide (a) High level platform (b) Medium level platform* (c) Rail level platform (d) All the above

Last Answer : (b) Medium level platform*

Description : For ‘A’ category stations it is necessary to provide (a) High level platform* (b) Medium level platform (c) Rail level platform (d) All the above

Last Answer : (a) High level platform*

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 : 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 : 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 : 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 : 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 *