Railway Engineering

101. If the standard length of a crossing is 480 cm, the number of crossing is

1. 1 in 8½ of B.G.
2. 1 in 8½ of M.G.
3. Both (a) and (b)
4. None of these

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

1. Articulated
2. Undercut
3. Over riding
4. Straight cut

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103. If w is width of sleepers, s is sleeper spacing and d is depth of ballast then

1. d = (s - w)/2
2. d = (s - w)/3
3. d = (s - w)/4
4. d = (s - w)/5

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104. In a B.G. railway track, the specified ruling gradient is 1 in 250. The horizontal curve of 3° on a gradient of 1 in 250 will have the permissible gradient of

1. 1 in 257
2. 1 in 357
3. 1 in 457
4. 1 in 512

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105. In a diamond crossing, numbers of noses are

1. 2
2. 3
3. 4
4. 6

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106. In a railway track, permissible gauge with tolerance under loaded condition, is

1. G + 0.1 mm
2. G + 1.5 mm
3. G - 1.0 mm
4. G - 1.5 mm

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107. In a scissors crossover, the crossings provided are
(i) 2 obtuse angle crossings
(ii) 4 obtuse angle crossings
(iii) 4 acute angle crossings (iv) 6 acute angle crossings
The correct answer is

1. (i) and (iii)
2. (i) and (iv)
3. (ii) and (iii)
4. (ii) and (iv)

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108. In a shunting signal if the red band is inclined at 45° it indicates

1. Stop
2. Proceed
3. Proceed cautiously
4. None of the above

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109. In India the rails are manufactured by

1. Open hearth process
2. Duplex process
3. Both (a) and (b)
4. Neither (a) nor (b)

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110. In India, metre gauge permanent way was adopted in

1. 1855
2. 1860
3. 1866
4. 1871

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