Railway Bridge And Tunnel Engineering Set 2

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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 2

Q1 | Lead of crossing is the distance from the
  • Heel of the switch to the toe of the switch
  • Heel of the switch to the theoretical nose of the crossing
  • Toe of the switch to the theoretical nose of crossing
  • Toe of the switch to the actual nose of crossing
Q2 | The place where a railway line and a road cross each other at the same level, is known as
  • Cross over
  • Railway junction
  • Road junction
  • Level crossing
Q3 | If the stock rails are B.H. rails, the type of switch generally provided, is
  • Articulated
  • Undercut
  • Over riding
  • Straight cut
Q4 | The object of providing a point lock is
  • To ensure that each switch is correctly set
  • To ensure that the point may not be operated while the train is on it
  • To detect any obstruction between and tongue rail
  • None of the above
Q5 | Minimum composite sleeper index for wooden sleepers used in cross-overs, is
  • 1152
  • 1252
  • 1352
  • 1452
Q6 | The rails get out of their original positions due to insufficient expansion gap. This phenomenon is known
  • Hogging
  • Buckling
  • Creeping
  • None of these
Q7 | When semaphore and warner are installed on the same post, then the stop indication is given when
  • Both arms are horizontal
  • Semaphore arm lowered but warner arm horizontal
  • Both semaphore and warner arms lowered
  • None of the above
Q8 | The standard dimensions of a wooden sleeper for M.G. railway track are
  • 2.74 m × 25 cm × 13 cm
  • 1.83 m × 20 cm × 11 cm
  • 1.52 m × 15 cm × 10 cm
  • 1.75 m × 20 cm × 12 cm
Q9 | To avoid the damage of nose of crossing, the wing rails are ramped so that nose of crossing remains at a lower level by
  • 3 mm
  • 4 mm
  • 5 mm
  • 6 mm
Q10 | Wear of rails is maximum in weight of
  • Tangent track
  • Sharp curve
  • Tunnels
  • Coastal area
Q11 | Degree of a railway curve is defined as number of degrees subtended at the centre of acurve by
  • 10 m
  • 15 m
  • 20 m
  • 30.5 m
Q12 | For even distribution of load through ballast, load dispersal is assumed as
  • 30° to the vertical
  • 45° to the vertical
  • 60° to the vertical
  • None of these
Q13 | For a sleeper density of (n + 5), the number of sleepers required for constructing a broadgauge railway track of length 650 m is
  • 975
  • 918
  • 900
  • 880
Q14 | Mr. W. Simms, the consulting Engineer to the Government of India recommended the gauge for Indian railways
  • 1.435 m as adopted in England
  • 1.800 m as per Indian conditions
  • 1.676 m as a compromise gauge
  • 1.000 m as a standard gauge
Q15 | The distance between theoretical nose of crossing and actual nose of crossing forpractical purposes, is
Q16 | The rail is designated by its
  • Length
  • Weight
  • Cross-section
  • Weight per unit length
Q17 | Best ballast contains stones varying in size from
  • 1.5 cm to 3 cm
  • 2.0 cm to 4 cm
  • 2.0 cm to 5 cm
  • 2.5 cm to 6 cm
Q18 | A turn-in-curve is defined as
  • A curve introduced between two straights
  • A reverse curve
  • A reverse curve introduced in continuity of a turn out
  • A spiral transition curve
Q19 | Ordinary rails are made of
  • Mild steel
  • Cast iron
  • Wrought iron
  • High carbon steel
Q20 | In India the rails are manufactured by
  • Open hearth process
  • Duplex process
  • Both (a) and (b)
  • Neither (a) nor (b)
Q21 | Pick up the incorrect statement from the following. Required tilt of 1 in 20 is provided
  • To the tops of rails
  • At rail seats in bearing plates
  • At rail seats in chairs
  • At rail seats in metal sleepers
Q22 | The formation width for a railway track depends on the(i) Type of gauge(ii) Number of tracks to be laid side by side(iii) Slope of sides of embankment or cuttingThe correct answer is
  • Only (i)
  • Both (i) and (ii)
  • Both (i) and (iii)
  • (i), (ii) and (iii)
Q23 | If a 0.7% upgrade meets a 0.65% downgrade at a summit and the permissible rate of change of grade per chain length is 0.10%, the length of the vertical curve, is
  • 10 chains
  • 12 chains
  • 14 chains
  • 16 chains
Q24 | Main disadvantage of steel sleepers, is:
  • It gets rusted quickly
  • Its lugs sometimes get broken
  • Its lugs sometimes get split
  • All the above
Q25 | For a Broad Gauge route with (M + 7) sleeper density, number of sleepers per rail length is
  • 18
  • 19
  • 20
  • 21