Railway Bridge And Tunnel Engineering Set 9

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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 9

Q1 | Smith diamond is provided if the angle of diamond is less than
Q2 | 60 R rails are mostly used in
  • Broad Gauge
  • Metre Gauge
  • Narrow Gauge
  • None of the above
Q3 | A welded rail joint is generally
  • Supported on a sleeper
  • Supported on a metal plate
  • Suspended
  • None of these
Q4 | If the standard length of a crossing is 480 cm, the number of crossing is
  • 1 in 8½ of B.G.
  • 1 in 8½ of M.G.
  • Both (a) and (b)
  • None of these
Q5 | Width of ballast section for Broad Gauge is
  • 1.83 m
  • 2.25 m
  • 3.35 m
  • 4.30 m
Q6 | Minimum length of a transition curve required for
  • 2° curves for a maximum permissible speed of 135 km/hr, is 220 metres
  • 4° curves for a maximum permissible speed of 95 km/hr, is 220 metres
  • 6° curves for a maximum permissible speed of 80 km/hr, is 220 metres
  • All the above
Q7 | For points and crossings, maximum size of ballast, is
  • 50 mm
  • 40 mm
  • 30 mm
  • 25 mm
Q8 | Which of the following methods of designation of crossing is mostly used in India?
  • Center line method
  • Right angle method
  • Isosceles angle method
  • None of the above
Q9 | For calculating the length of curve lead (C.L.), the correct formula is
  • C.L. = G. /2
  • C.L. = IG)
  • C.L. = 2 GN
  • All the above
Q10 | In a railway track, permissible gauge with tolerance under loaded condition, is
  • G + 0.1 mm
  • G + 1.5 mm
  • G - 1.0 mm
  • G - 1.5 mm
Q11 | Yellow light-hand signal indicates
  • Stop
  • Proceed
  • Proceed cautiously
  • None of the above
Q12 | The first Indian railway was laid in
  • 1775
  • 1804
  • 1825
  • 1853
Q13 | Sand may be used as ballast for
  • Wooden sleepers
  • Steel sleepers
  • Cast iron sleepers
  • All the above
Q14 | What will be the curve lead for a 1 in 8.5 turnout taking off from a straight broad gaugetrack?
  • 28.49 m
  • 21.04 m
  • 14.24 m
  • 7.45 m
Q15 | A scissors cross-over consists of
  • Two pairs of points, four acute angle crossings and two obtuse angle crossings
  • Four pairs of points, four acute angle crossings and four obtuse angle crossings
  • Four pairs of points, six acute angle crossings and two obtuse angle crossings
  • Two pairs of points, six acute angle crossings and four obtuse angle crossings
Q16 | The effective bearing area of all types of sleepers, is
  • 0.40 m2
  • 0.42 m2
  • 0.44 m2
  • 0.46 m2
Q17 | The cross-sectional area of 52 kg flat footed rail is
  • 6155 mm²
  • 6615 mm²
  • 7235 mm²
  • 7825 mm²
Q18 | angle and R is radius of the turnout, the length of the tongue rail, is
  • R
  • R
  • /2
  • /2
Q19 | Steel sleepers are
  • Rectangular is cross section throughout
  • Hollow circular pipes
  • 6 mm thick steel sheets with ends bent down
  • 6 mm thick steel sheets with ends bent up
Q20 | Number of dog spikes normally used per rail seat on curved track is
  • One on either side
  • Two outside and one inside
  • One outside and two inside
  • Two outside and two inside
Q21 | Minimum composite sleeper index for wooden sleepers used over bridge girders, is
  • 1455
  • 1355
  • 1255
  • 1155
Q22 | The shape of transition curve used by Indian Railways is
  • Cubic parabola
  • Spiral
  • Sine curve
  • Lemniscates of Bernoulli
Q23 | Gauge of a permanent way, is
  • Minimum distance between running faces of rails
  • Minimum distance between outer faces of rails
  • Distance between centres of rails
  • Width of formation
Q24 | If w is width of sleepers, s is sleeper spacing and d is depth of ballast then
  • d = (s - w)/2
  • d = (s - w)/3
  • d = (s - w)/4
  • d = (s - w)/5
Q25 | The reception signal is(i) Outer signal(ii) Home signal(iii) Starter(iv) Advanced starterThe correct answer is
  • (i) and (ii)
  • (ii) and (iii)
  • (iii) and (iv)
  • (i) and (iv)