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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