Railway Engineering Multiple Choice Questions and Answers

61. Minimum depth of ballast prescribed for BG routes is

1. 200 mm
2. 250 mm
3. 300 mm
4. 400 mm

62. Minimum station yard gradient to be provided is

1. 1 in 250
2. 1 in 500
3. 1 in 750
4. 1 in 1000

63. Minimum width of platform specified is

1. 3.66 m
2. 4.66 m
3. 5.66 m
4. 6.66 m

64. Monoblock concrete sleepers have.................cross section.

1. square
2. rectangular
3. trapezoidal
4. channel type

65. Narrow gauge is adopted where

1. terrain is hilly
2. number of river crossings are more
3. expected revenue earning is low
4. acquisition of land is difficult

66. Non-corrosive material applied to rails consist of

1. red oxide coat
2. red oxide + zinc chromate coat
3. red oxide + aluminium coat
4. red oxide + zinc chlorite + bituminous emulsion

67. On black cotton soil.................is used as a blanket before regular ballast is provided.

1. clay
2. murram
3. cinder
4. both b and c

68. On broad gauge a sleeper density of M + 4 means, the number of sleepers to be used per kilometre length is

1. 1660
2. 1540
3. 1308
4. 1282

69. On curves grade compensation provided in broad gauge is

1. 0.02%
2. 0.03%
3. 0.04%
4. 0.06%

70. On double line BG routes ballast required per kilometre length is

1. 1300 m3
2. 2600 m3
3. 3900 m3
4. 5200 m3