Q.1

m long rails are used in

  • India
  • Pakistan
  • Russia
  • U.S.A.
  • U.K.
Q.2

Regional Indian railways use different types of sleepers according to their

  • availability
  • economy
  • suitability
  • design
  • all the above.
Q.3

Minimum packing space provided between two sleepers, is between

  • 20 to 25 cm
  • 25 to 30 cm
  • 30 to 35 cm
  • 35 to 40 cm
Q.4

If G is gauge distance and a is crossing, the distance between the nose of acute crossing and nose of obtuse crossing of a rail diamond, measured along the rail not forming the diamond, is

  • G cot α
  • G tan α
  • G sin α
  • G cos α
Q.5

On either side of the centre line of rails, a cant of 1 inin the sleeper is provided for a distance of

  • 150 mm
  • 165 mm
  • 175 mm
  • 185 mm
Q.6

The gradient on which an additonal engine is required to negotiate the gradient, is called

  • momentum gradient
  • pusher gradient
  • ruling gradient
  • steep gradient.
Q.7

If absolute levels of rails at the consecutive axles A, B, and C separated by 1.8 metres are 100.m, 100.m, and 100.m respectively, the unevenness of rails, is

  • 0.065 m
  • 0.055 m
  • 0.045 m
  • 0.035 m
Q.8

If the stock rails are B.H. rails, the type of switch generally provided, is

  • articulated
  • undercut
  • over riding
  • straight cut.
Q.9

Bending of rail ends due to loose packing under a joint and loose fish Bolts, is known

  • buckling
  • hogging
  • creeping
  • none of these.
Q.10

If a is average number of peaks more thanmm of uneveness per kilometre, b is average number peaks more than 6 mm for gauge variation per kilometre and c is average number of peaks more than 2 mm twist per metre, then composite current recording index (Ic), as recommended by Indian Northern Railways, is

  • Ic = 10 - a - b - c/4
  • Ic = 20 - a - b - c/4
  • Ic = 30 - a - b - c/4
  • Ic = 40 - a - b - c/4
Q.11

The rails get out of their original positions due to insufficient expansion gap. This phenomenon is known

  • hogging
  • buckling
  • creeping
  • none of these.
Q.12

For points and crossings, maximum size of ballast, is

  • 50 mm
  • 40 mm
  • 30 mm
  • 25 mm
  • 20 mm
Q.13

The main function of sleepers, is

  • to support rails
  • to hold rails at correct gauge
  • to distribute load from the rails to ballast
  • all the above.
Q.14

Minimum gradient in station yards is generally limited to

  • 1 in 1000
  • 1 in 750
  • 1 in 500
  • 1 in 400
  • zero
Q.15

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
  • a single two way key provided on the gauge side to hold the rail to sleeper
  • all the above.
Q.16

If n is length of a rail in metres, the number of sleepers per rail length generally varies from

  • n to (n + 2)
  • (n + 2) to (n + 4)
  • (n + 3) to (n + 6)
  • (n + 4) to (n + 5)
Q.17

Top surface of steel sleepers, is

  • kept level throughout
  • provided a cant of 1 in 20 inward
  • provided a cant of 1 in 20 outward
  • none of these.
Q.18

Regional Indian railways use different types of sleepers according to their

  • availability
  • economy
  • suitability
  • design
  • all the above.
Q.19

Charles Vignoles invented the flat footed rails in

  • 1814
  • 1836
  • 1846
  • 1856
  • 1873
Q.20

To design a cross-over between parallel tracks, the required components are :

  • two switch, points, two acute angle crossings and two check rails
  • two switch points, two acute angle crossings and four check rails
  • two switch points, two acute angle crossings and six check rails
  • none of these.
Q.21

Stock rails are

  • parts of crossing
  • fitted against check rails
  • fitted against tongue rails
  • laid between heel of switch and nose of crossing.
Q.22

On either side of the centre line of rails, a cant of 1 inin the sleeper is provided for a distance of

  • 150 mm
  • 165 mm
  • 175 mm
  • 185 mm
Q.23

Minimum packing space provided between two sleepers, is between

  • 20 to 25 cm
  • 25 to 30 cm
  • 30 to 35 cm
  • 35 to 40 cm
Q.24

If a is average number of peaks more thanmm of uneveness per kilometre, b is average number peaks more than 6 mm for gauge variation per kilometre and c is average number of peaks more than 2 mm twist per metre, then composite current recording index (Ic), as recommended by Indian Northern Railways, is

  • Ic = 10 - a - b - c/4
  • Ic = 20 - a - b - c/4
  • Ic = 30 - a - b - c/4
  • Ic = 40 - a - b - c/4
Q.25

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.
Q.26

Check rails are provided on inner side of inner rails if sharpness of a B.G. curve, is more than

Q.27

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.
Q.28

If a is average number of peaks more thanmm of uneveness per kilometre, b is average number peaks more than 6 mm for gauge variation per kilometre and c is average number of peaks more than 2 mm twist per metre, then composite current recording index (Ic), as recommended by Indian Northern Railways, is

  • Ic = 10 - a - b - c/4
  • Ic = 20 - a - b - c/4
  • Ic = 30 - a - b - c/4
  • Ic = 40 - a - b - c/4
Q.29

On either side of the centre line of rails, a cant of 1 inin the sleeper is provided for a distance of

  • 150 mm
  • 165 mm
  • 175 mm
  • 185 mm
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