railway engineering MCQs – Page 5

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

railway engineering Mcqs
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