railway engineering MCQs – Page 2

Practise focused railway engineering questions with marked answers for exam preparation and subject revision.

railway engineering Mcqs
51. Which of the following factors govern the choice of the gauge ?
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A. volume and nature of traffic

B. speed of train

C. correct answer is ?

D. ) physical features of the country</strong>

52. Wear of rails is maximum in weight of___________________?
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A. sharp curve

B. tangent track

C. coastal area

D. tunnels

53. When the rail ends rest on a joint sleeper, the joint is termed as_________________?
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A. suspended rail joint

B. bridge joint

C. base joint

D. supported rail joint
54. Consider the following statements about concrete sleepers_________________?
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A. They render transportation easy.

B. They have good scrap value.

C. They maintain the gauge quite satisfactorily.Of these statements </strong>

D. They improve the track modulus.
55. Due to battering action of wheels over the end of the rails, the rails get bent down and are deflected at ends. These rails are called_________________?
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A. corrugated rails

B. hogged rails

C. roaring rails

D. buckled rails

56. The standard length of rail for Broad Gauge and Meter Gauge are respectively __________________?
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A. 13 m and 13 m

B. 12 m and 13 m

C. 13 m and 12 m

D. 12 m and 12 m

57. Lead of crossing is the distance from the_________________?
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A. heel of the switch to the theoretical nose of the crossing

B. toe of the switch to the theoretical nose of crossing

C. toe of the switch to the actual nose of crossing

D. heel of the switch to the toe of the switch

58. 52 kg rails are mostly used in__________________?
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A. Broad Gauge

B. Meter Gauge

C. Narrow Gauge

D. both (A) and (B)

59. The cross-sectional area of 52 kg flat footed rail is_________________?
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A. 7825 mm2

B. 7235 mm2

C. 6615 mm2

D. 6155 mm2

60. Normally maximum cant permissible in Meter Gauge is__________________?
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A. 75 mm

B. 165 mm

C. 140 mm

D. 90 mm
61. Composite sleeper index is the index of___________________?
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A. wear resistance and hardness

B. strength and toughness

C. hardness and strength

D. toughness and wear resistance

62. The steepest gradient permissible on a 2.5 curve for Broad Gauge line having ruling gradient of 1 in 200 is___________________?
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A. 1 in 222

B. 1 in 235

C. 1 in 250

D. 1 in 275

63. In a B.G. railway track, the specified ruling gradent is 1 in 250. The horizontal curve of 3 on a gradient of 1 in 250 will have the permissible gradient of__________________?
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A. 1 in 512

B. 1 in 257

C. 1 in 457

D. 1 in 357
64. Number of switches provided on a Gaunt-letted track is_______________?
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A. 2

B. 3

C. 1

D. none of the above
65. Yellow lighthand signal indicates____________________?
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A. proceed

B. proceed cautiously

C. none of the above

D. stop

66. The side slope of embankments for a railway track is generally taken as______________?
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A. 1:01

B. 2:1

C. 1.5:1

D. 1:02

67. If a is the angle of crossing, then the number of crossings N according to right angle method is given by_________________?
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A. cot(A)

B. Vi cot(cc/2)

C. Vi cosec(a/2)

D. cot(oc/2)

68. Cant deficiency occurs when a vehicle travels around a curve at_________________?
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A. speeds lower than equilibrium speed

B. equilibrium speed

C. booked speed

D. speeds higher than equilibrium speed
69. 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________________?
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A. 6.61

B. 13.21

C. 26.41

D. 19.81

70. The rail is designated by its__________________?
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A. length

B. cross-section

C. weight

D. weight per unit length
71. Loose jaws of steel trough sleepers are made of___________________?
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A. mild steel

B. cast steel

C. cast iron

D. spring steel
72. For laying the railway track, materials required are__________________?
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A. Rails

B. FishPlates

C. Fish Bolts

D. Bearing Plates

E. quantities required for one kilometer of Broad Gauge track will be

73. Anti creep bearing plates are provided on_________________?
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A. bridges and approaches

B. joints

C. both (A) and (B)

D. none of the above
74. Metal sleepers are superior to wooden sleepers with respect to________________?
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A. track circuiting

B. cost

C. life

D. fastening

75. The height of the center of arm of a semaphore signal above the ground is_________________?
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A. 5.5m

B. 7.5 m

C. 6.5 m

D. 8.5m

76. Number of dog spikes normally used per rail seat on curved track is__________________?
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A. one on either side

B. two outside and two inside

C. one outside and two inside

D. two outside and one inside
77. When semaphore and warner are installed on the same post, then the stop indication is given when___________________?
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A. both arms are horizontal

B. semaphore arm lowered but warner arm horizontal

C. both semaphore and warner arms lowered

D. none of the above

78. The limiting value of cant deficiency for Meter Gauge routes is__________________?
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A. 75 mm

B. 50 mm

C. 100 mm

D. 40 mm

79. What will be the curve lead for a 1 in 8.5 turnout taking off from a straight broad gauge track?
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A. 28.49 m

B. 7.45 m

C. 21.04 m

D. 14.24 m

80. Flangeway clearance is the distance_________________?
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A. none of the above

B. between the gauge faces of the stock rail and the tongue rail

C. between the adjoining faces of the running rail and the check rail near the crossing

D. through which the tongue rail moves laterally at the toe of the switch

81. Which one of the following rail failures is caused by loose fish bolts at expansion joints ?
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A. angular break

B. transverse fissures

C. split head

D. crushed head
82. Head width of 52 kg rail section is________________?
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A. 67mm

B. 66.7mm

C. 61.9 mm

D. 72.33 mm

83. Largest percentage of material in the rail is in its__________________?
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A. head

B. web

C. head and foot both

D. foot

84. The formation width for a single line meter gauge track in embankment as adopted on Indian Railways is______________________?
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A. 4.88 m

B. 6.10 m

C. 5.49 m

D. 4.27 m

85. The shape of transition curve used by Indian Railways is____________________?
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A. lemniscate of Bernoulli

B. sine curve

C. cubic parabola

D. spiral

86. The treadle bar is provided_____________________?
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A. in the middle of the track a little in front of the toes of the tongue rail

B. near and parallel to inner side of one of the rails

C. at right angle to the rail

D. near and parallel to inner side of both the rails

87. Minimum depth of ballast cushion for a Broad Gauge wooden sleeper of size 275x25x13 cm with 75cm sleeper spacing is________________?
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A. 20 cm

B. 30cm

C. 15 cm

D. 25 cm
88. Heel divergence is__________________?
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A. always greater than flangeway clearance

B. equal to flangeway clearance

C. sometimes greater than flangeway clearance

D. always less than flangeway clearance

89. The object of providing a point lock is_________________?
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A. to ensure that the point may not be operated while the train is on it

B. to detect any obstruction between and tongue rail

C. none of the above

D. to ensure that each switch is correctly set
90. Number offish bolts per fish plate is________________?
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A. 6

B. 2

C. 4

D. 5

91. The sleepers resting directly on girder are fastened to the top flange of girder by________________?
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A. rail screws

B. dog spikes

C. hook bolts

D. fang bolts

92. Fish plate is in contact with rail at________________?
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A. fishing plane

B. head of rail

C. foot of rail

D. web of rail

93. The compensation for curvature on gradient for Meter Gauge is given by________________?
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A. 70/R

B. re R is radius of curve

C. 105/R

D. 52.5/R

E. 35/R

94. Two important constituents in the com-position of steel used for rail are_________________?
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A. carbon and silicon

B. manganese and phosphorous

C. carbon and sulfur

D. carbon and manganese
95. The total gap on both sides between the inside edges of wheel flanges and gauge faces of the rail is kept as_________________?
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A. 10mm

B. 16mm

C. 19 mm

D. 13mm

96. A triangle is used for__________________?
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A. changing the direction of engine

B. transferring wagons to and from parallel tracks without shunting

C. separating all the sidings and shunting lines from main lines

D. preventing the vehicles from running off the track

97. The height of the rail for 52 kg rail section is_______________?
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A. 143 mm

B. 129mm

C. 172 mm

D. 156 mm
98. Tensile strength of steel used in rails should not be less than____________________?
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A. 850 MPa

B. 450 MPa

C. 700 MPa

D. 500 MPa

99. A train is hauled by 4-8-2 locomotive. The number of driving wheels in this locomotive is_________________?
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A. 14

B. 12

C. 8

D. 4

100. Width of ballast section for Broad Gauge is_________________?
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A. 3.35 m

B. 4.30 m

C. 2.25 m

D. 1.83 m