Railway Bridge And Tunnel Engineering Set 5

Civil Engineering

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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
Answer: Proceed
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)]
Answer: DN + G [3N + 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
Answer: At an inward slope of 1 in 20
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
Answer: 22.5 tonnes
Q5 | The type of switch generally used for B.G. and M.G. tracks, is
  • Articulated
  • Undercut
  • Over riding
  • Straight cut
Answer: Over riding
Q6 | For an effective administration, Indian railway system has been divided into
  • Four railway zones
  • Six railway zones
  • Seven railway zones
  • Nine railway zones
Answer: 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
  • A rad
Answer: cot 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
Answer: 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
Answer: All the above
Q10 | Tensile strength of steel used in rails should not be less than
  • 450 MPa
  • 500 MPa
  • 700 MPa
  • 850 MPa
Answer: 700 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)
Answer: 42 ft (12.8 m)
Q12 | Wing rails are provided
  • Near tongue rails
  • Near check rails
  • Near stock rails
  • In crossing
Answer: 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
Answer: 2:01
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
Answer: (S + 10H)/20
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 )
Answer: (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)
Answer: Overriding switch
Q17 | On B.G. tracks the distance of outer signal from station limit is kept
  • 510 m
  • 520 m
  • 530 m
  • 540 m
Answer: 540 m
Q18 | The limiting value of cant deficiency for Meter Gauge routes is
  • 40 mm
  • 50 mm
  • 75 mm
  • 100 mm
Answer: 50 mm
Q19 | The weight of the rails depends upon
  • Gauge of the tracks
  • Speed of trains
  • Spacing of sleepers
  • All the above
Answer: 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
Answer: 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)
Answer: (i) and (iv)
Q22 | Rail section first designed on Indian railways, was
  • Double headed
  • Bull headed
  • Flat footed
  • (a) and (b) simultaneously
Answer: Double headed
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.
Answer: 1 in 8½ B.G. and, 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
Answer: 10
Q25 | Dimensions of a plate girder are:
  • 851 mm × 851 mm
  • 255 mm × 254 mm
  • 851 mm × 254 mm
  • 551 mm × 254 mm
Answer: 851 mm × 254 mm
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