### Railway Bridge And Tunnel Engineering Set 5

This set of Railway Bridge and Tunnel Engineering Multiple Choice Questions & Answers (MCQs) focuses on Railway Bridge And Tunnel Engineering Set 5

Q1 | In a shunting signal if the red band is inclined at 45° it indicates
• Stop
• Proceed
• Proceed cautiously
• None of the above
Q2 | If D is distance between centres of two parallel track of gauge G, then, total length ofcross-over (from the point of commencement to the point of termination) with an intermediate straight portion and N crossing, is given by
• DN + G [N + N2)]
• DN + G [2N + N2)]
• DN + G [3N + N2)]
• DN + G [4N + N2)]
Q3 | Rail tops of a track are placed
• Horizontal
• At an inward slope of 1 in 20
• At an outward slope of 1 in 20
• At an outward slope of 1 in 30
Q4 | A train is hauled by 2-8-2 locomotive with 22.5 tonnes and on each driving axle. Assuming the coefficient of rail-wheel friction to be 0.25, what would be the hauling capacity of the locomotive?
• 15.0 tonnes
• 22.5 tonnes
• 45.0 tonnes
• 90.0 tonnes
Q5 | The type of switch generally used for B.G. and M.G. tracks, is
• Articulated
• Undercut
• Over riding
• Straight cut
Q6 | For an effective administration, Indian railway system has been divided into
• Four railway zones
• Six railway zones
• Seven railway zones
• Nine railway zones
Q7 | If 'A' is the angle formed by two gauge faces, the crossing number will be
• tan A
• cot A
• sec A
Q8 | Heel divergency, the distance between the running faces of stock rail and gauge face of tongue rail, as recommended for Indian B.G. tracks, is
• 100 mm
• 119 mm
• 125 mm
• 135 mm
Q9 | Pick up the incorrect statement from the following:
• Ends of adjoining rails should be in true alignment
• Rail joints should be as strong as the rail section itself
• Rail joints should be elastic laterally as well as vertically
• All the above
Q10 | Tensile strength of steel used in rails should not be less than
• 450 MPa
• 500 MPa
• 700 MPa
• 850 MPa
Q11 | On Indian Railways standard length of rails for B.G. track, is
• 33 ft (10.06 m)
• 36 ft (10.97 m)
• 39 ft (11.89 m)
• 42 ft (12.8 m)
Q12 | Wing rails are provided
• Near tongue rails
• Near check rails
• Near stock rails
• In crossing
Q13 | The side slope of embankments for a railway track is generally taken as
• 1:01
• 1.5 : 1
• 2:01
• 1:02
Q14 | If S and H are strength and hardness index of a timber at 12% moisture content, thecomposite sleeper index, is
• (H + 10S)/20
• (S + 10H)/20
• (20S + H)/10
• (S + 20H)/10
Q15 | If D is the distance between parallel tracks G between theoretical noses of two crossings measured parallel to tracks, is
• (D - G - G )
• (D - G + G )
• (D + G + G )
Q16 | To achieve best performance, the type of switch preferred to, is
• Undercut switch
• Straight-cut switch
• Overriding switch
• Both (a) and (b)
Q17 | On B.G. tracks the distance of outer signal from station limit is kept
• 510 m
• 520 m
• 530 m
• 540 m
Q18 | The limiting value of cant deficiency for Meter Gauge routes is
• 40 mm
• 50 mm
• 75 mm
• 100 mm
Q19 | The weight of the rails depends upon
• Gauge of the tracks
• Speed of trains
• Spacing of sleepers
• All the above
Q20 | The main advantage of a long rail over short one, is
• It requires less number of rail fastenings
• It provides smooth running of trains
• It involves less maintenance cost
• All the above
Q21 | In a scissors crossover, the crossings provided are(i) 2 obtuse angle crossings(ii) 4 obtuse angle crossings(iii) 4 acute angle crossings(iv) 6 acute angle crossingsThe correct answer is
• (i) and (iii)
• (i) and (iv)
• (ii) and (iii)
• (ii) and (iv)
Q22 | Rail section first designed on Indian railways, was
• Flat footed
• (a) and (b) simultaneously
Q23 | The lengths of the standard crossings in India for Broad gauge and Metre gauge tracks is same for
• 1 in 8½ B.G. and, in 12 M.G.
• 1 in 12 B.G. and, 1 in 16 M.G.
• 1 in 12 B.G. and 1 in 8½ M.G.
• 1 in 16 B.G. and 1 in 12 M.G.
Q24 | For the purpose of track maintenance, the number of turn out equivalent to one track km is
• 1
• 2
• 5
• 10
Q25 | Dimensions of a plate girder are:
• 851 mm × 851 mm
• 255 mm × 254 mm
• 851 mm × 254 mm
• 551 mm × 254 mm