Railway Engineering MCQ

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• Metal sleepers are superior to wooden sleepers with respect to
  ক

  cost

  খ

  life

  গ

  track circuiting

  ঘ

  fastening
• Anti creep bearing plates are provided on
  ক

  bridges and approaches

  খ

  joints

  গ

  both (A) and (B)

  ঘ

  none of the above
• To ensure exact gauge, the gauge tie plates are provided at
  ক

  toe of the switch

  খ

  nose of crossing

  গ

  both (A) and (B)

  ঘ

  none of the above
• What will be the curve lead for a 1 in 8.5 turnout taking off from a straight broad gauge track?
  ক

  28.49 m

  খ

  21.04 m

  গ

  14.24 m

  ঘ

  7.45 m
• 52 kg rails are mostly used in
  ক

  Broad Gauge

  খ

  Meter Gauge

  গ

  Narrow Gauge

  ঘ

  Both (A) and (B)
• 60 R rails are mostly used in
  ক

  Broad Gauge

  খ

  Metre Gauge

  গ

  Narrow Gauge

  ঘ

  none of the above
• Ordinary rails are made of
  ক

  mild steel

  খ

  cast iron

  গ

  wrought iron

  ঘ

  high carbon steel
• The compensation for curvature on gradient for Meter Gauge is given by (where R is radius of curve.)
  ক

  $$\frac{{70}}{{\text{R}}}$$

  খ

  $$\frac{{52.5}}{{\text{R}}}$$

  গ

  $$\frac{{35}}{{\text{R}}}$$

  ঘ

  $$\frac{{105}}{{\text{R}}}$$
• The width of foot for 90 R rail section is
  ক

  100 mm

  খ

  122.2 mm

  গ

  136.5 mm

  ঘ

  146.0 mm
• The limiting value of cant deficiency for Meter Gauge routes is
  ক

  40 mm

  খ

  50 mm

  গ

  75 mm

  ঘ

  100 mm
• Stretcher bar is provided
  ক

  To permit lateral movement of the tongue rail

  খ

  To maintain the two tongue rails at the exact distance

  গ

  To ensure exact gauge at the toe of the switch as well as the nose of crossing

  ঘ

  To prevent any vertical movement between the wing rail and nose of crossing
• The following tests are conducted for rails:<br>i) falling weight test<br>ii) tensile test<br>iii) hammer test<br>The compulsory tests are
  ক

  Only (i)

  খ

  (i) and (ii)

  গ

  (ii) and (iii)

  ঘ

  (i) and (iii)
• Number offish bolts per fish plate is
  ক

  2

  খ

  4

  গ

  5

  ঘ

  6
• The height of the center of arm of a semaphore signal above the ground is
  ক

  5.5 m

  খ

  6.5 m

  গ

  7.5 m

  ঘ

  8.5 m
• The limiting value of cant excess for Broad Gauge is
  ক

  55 mm

  খ

  65 mm

  গ

  75 mm

  ঘ

  l00 mm
• Width of ballast section for Broad Gauge is
  ক

  1.83 m

  খ

  2.25 m

  গ

  3.35 m

  ঘ

  4.30 m
• The type of spike used for fixing chairs of bull headed rails to wooden sleepers is
  ক

  Dog spike

  খ

  Rail screw

  গ

  Elastic spike

  ঘ

  Round spike
• When the rail ends rest on a joint sleeper, the joint is termed as
  ক

  supported rail joint

  খ

  suspended rail joint

  গ

  bridge joint

  ঘ

  base joint
• The desirable rate of change of cant deficiency in case of Metre Gauge is
  ক

  20 mm/sec

  খ

  35 mm/sec

  গ

  55 mm/sec

  ঘ

  65 mm/sec
• The steepest gradient permissible on a 2.5° curve for Broad Gauge line having ruling gradient of 1 in 200 is
  ক

  1 in 250

  খ

  1 in 222

  গ

  1 in 235

  ঘ

  1 in 275
• Pandrol clips cannot be used with
  ক

  wooden sleepers

  খ

  concrete sleepers

  গ

  CST-9 sleepers

  ঘ

  steel trough sleepers
• The load on each axle of a locomotive is 22 tonnes. If the coefficient of friction is 0.2, then the hauling capacity due to 3 pairs of driving wheels will be
  ক

  26.41

  খ

  19.81

  গ

  13.21

  ঘ

  6.61
• If ‘A’ is the angle formed by two gauge faces, the crossing number will be
  ক

  tan A

  খ

  cot A

  গ

  sec A

  ঘ

  Arad
• The shape of transition curve used by Indian Railways is
  ক

  cubic parabola

  খ

  spiral

  গ

  sine curve

  ঘ

  lemniscate of Bernoulli
• The formation width for a double line Broad Gauge track in cutting (excluding drains) as adopted on Indian Railways is
  ক

  6.10 m

  খ

  8.84 m

  গ

  10.21m

  ঘ

  10.82 m
• The formation width for a single line meter gauge track in embankment as adopted on Indian Railways is
  ক

  4.27 m

  খ

  4.88 m

  গ

  5.49 m

  ঘ

  6.10 m
• Number of dog spikes normally used per rail seat on curved track is
  ক

  one on either side

  খ

  two outside and one inside

  গ

  one outside and two inside

  ঘ

  two outside and two inside
• Minimum depth of ballast cushion for a Broad Gauge wooden sleeper of size 275x25x13 cm with 75cm sleeper spacing is
  ক

  15 cm

  খ

  20 cm

  গ

  25 cm

  ঘ

  30cm
• Dog spikes are used for fixing rail to the
  ক

  wooden sleepers

  খ

  CST-9 sleepers

  গ

  steel trough sleepers

  ঘ

  concrete sleepers
• Which of the following devices is used to transfer the wagons or locomotives to and from parallel tracks without any necessity of shunting ?
  ক

  triangle

  খ

  turntable

  গ

  traverser

  ঘ

  scotch block