Railway Bridge And Tunnel Engineering Set 3

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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 3

Q1 | Bearing plates are used to fix
  • Flat footed rails to the wooden sleepers
  • Double headed rails to the wooden sleepers
  • Bull headed rails to the wooden sleepers
  • Flat footed rails to the cast iron sleepers
Q2 | On a single line track, 10 goods trains loaded with iron ore run from A to B and empty wagons return from B to A daily. Amount of creep of the rails will be
  • Zero
  • More in the direction A to B
  • More in the direction B to A
  • None of these
Q3 | The desirable rate of change of cant deficiency in case of Metre Gauge is
  • 20 mm/sec
  • 35 mm/sec
  • 55 mm/sec
  • 65 mm/sec
Q4 | At a rail joint, the ends of adjoining rails, are connected with a pair of fish plates and
  • 2 fish bolts
  • 4 fish bolts
  • 6 fish bolts
  • 8 fish bolts
Q5 | If the standard length of a B.G. crossing is 597 cm, the number of crossing, is
  • 1 in 8½
  • 1 in 12
  • 1 in 16
  • None of these
Q6 | Switch angle is the angle between
  • The gauge face of the stock rail and tongue rail
  • The outer face of the stock rail and tongue rail
  • The gauge face of the stock rail and outer face of the tongue rail
  • The outer face of the stock rail and the gauge face of the tongue rail
Q7 | Pick up the incorrect statement from the following:
  • Sleepers transfer the load of moving locomotive to the girders of the bridges
  • Sleepers act as a non-elastic medium between the rails and ballast
  • Sleepers hold the rails at 1 in 20 tilt inward
  • Sleepers hold the rails loose on curve
Q8 | On Broad Gauge main lines with maximum traffic loads, the rail section preferred to, is
  • 29.8 to 37.3 kg/m
  • 32.5 to 42.5 kg/cm
  • 44.7 to 56.8 kg/m
  • None of these
Q9 | The treadle bar is provided
  • In the middle of the track a little in front of the toes of the tongue rail
  • Near and parallel to inner side of one of the rails
  • At right angle to the rail
  • Near and parallel to inner side of both the rails
Q10 | Heel of crossing is the line joining
  • Ends of splice rail and point rail
  • Ends of lead rails butting the crossing
  • Ends of wing rails
  • Throat and actual nose of crossing
Q11 | The main advantage of a cement concrete sleeper, is:
  • Its heavy weight which improves the track modulus
  • Its capacity to maintain gauge
  • Its suitability for track circuiting
  • All the above
Q12 | Stock rails are
  • Parts of crossing
  • Fitted against check rails
  • Fitted against tongue rails
  • Laid between heel of switch and nose of crossing
Q13 | Continuity of electric current across welded rail joints, is maintained by
  • Welding ends of a wire to each rail
  • Placing an insulated plate underneath the rails
  • Placing insulation in expansion gaps
  • None of these
Q14 | Consider the following statements about concrete sleepers.1. They improve the track modulus.2. They have good scrap value.3. They render transportation easy.4. They maintain the gauge quite satisfactorily. Of these statements
  • 1 and 2 are correct
  • 2 and 3 are correct
  • 3 and 4 are correct
  • 1 and 4 are correct
Q15 | The arrangement of rails which permit trains to cross another track and also to divert to the other track, is called
  • Diamond crossing
  • Diamond crossing with single slip
  • Diamond crossing with double slip
  • Cross over
Q16 | On either side of the centre line of rails, a cant of 1 in 20 in the sleeper is provided for a distance of
  • 150 mm
  • 165 mm
  • 175 mm
  • 185 mm
Q17 | In a B.G. railway track, the specified ruling gradient is 1 in 250. The horizontal curve of3° on a gradient of 1 in 250 will have the permissible gradient of
  • 1 in 257
  • 1 in 357
  • 1 in 457
  • 1 in 512
Q18 | A CST-9 sleeper consists of
  • Two inverted triangular pots on either side of rail seat
  • A central plate with a projected key and box on the top of plate
  • A tie bar and 4 cotters to connect two cast iron plates
  • All the above
Q19 | Staggered rail joints are generally provided
  • On curves
  • On tangents
  • On bridges
  • In tunnels
Q20 | The following tests are conducted for rails:(i) Falling weight test(ii) Tensile test(iii) Hammer testThe compulsory tests are
  • Only (i)
  • (i) and (ii)
  • (ii) and (iii)
  • (i) and (iii)
Q21 | Pick up the incorrect statement from the following:
  • Fish plates fit the underside of the rail head
  • Fish plates fit the top of the rail foot
  • Fish plates fit the web of the rail section
  • Cross sectional area of fish plates, is normally the same as that of the rail section
Q22 | Pick up the correct statement from the following:
  • Length of tongue rail should be greater than rigid wheel base of vehicle
  • Stock rail should be longer than tongue rail
  • Length of stock rail ahead of the toe should be a minimum of 1.65 m
  • All the above
Q23 | Fish plate is in contact with rail at
  • Web of rail
  • Fishing plane
  • Head of rail
  • Foot of rail
Q24 | In railways a triangle is mainly provided for
  • Diverting trains from the main line to branch line
  • Crossing over between parallel tracks
  • Changing direction of engines through 180°
  • Shunting wagons in yards
Q25 | Minimum gradient in station yards is generally limited to
  • 1 in 1000
  • 1 in 750
  • 1 in 500
  • Zero