Railway Engineering

61. For a 8° curve track diverging from a main curve of 5° in an opposite direction in the layout of a broad gauge yard, the cant to be provided for the branch track for maximum speed of 45 km/h on the main line and 'G' = 1.676 m is (Permitted cant deficiency for the main line = 7.6 cm)

1. 0.168 cm
2. -0.168 cm
3. 7.432 cm
4. 7.768 cm

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62. For a Broad Gauge route with (M + 7) sleeper density, number of sleepers per rail length is

1. 18
2. 19
3. 20
4. 21

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63. For a sleeper density of (n + 5), the number of sleepers required for constructing a broad gauge railway track of length 650 m is

1. 975
2. 918
3. 900
4. 880

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64. For an effective administration, Indian railway system has been divided into

1. Four railway zones
2. Six railway zones
3. Seven railway zones
4. Nine railway zones

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65. For calculating the length of curve lead (C.L.), the correct formula is

1. C.L. = G. cot α/2
2. C.L. = √(2IG)
3. C.L. = 2 GN
4. All the above

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66. For developing thinly populated areas, the correct choice of gauge is

1. Broad Gauge
2. Meter Gauge
3. Narrow Gauge
4. Any of the above

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67. For even distribution of load through ballast, load dispersal is assumed as

1. 30° to the vertical
2. 45° to the vertical
3. 60° to the vertical
4. None of these

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68. For flat bottom sleepers, maximum size of ballast, is

1. 50 mm
2. 40 mm
3. 33 mm
4. 25 mm

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69. For holding a rail in position, no chairs are used for

1. Flat footed rails
2. Bull headed rails
3. Double headed rails
4. Both (a) and (b)

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70. For inspection and packing of ballast, each pot sleeper is provided with

1. One hole
2. Two holes
3. Three holes
4. Four holes

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