### Railway Bridge And Tunnel Engineering Set 9

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
• 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)