1. In a shunting signal if the red band is inclined at 45° it indicates
Correct : B. Proceed
2. If D is distance between centres of two parallel track of gauge G, then, total length of
cross-over (from the point of commencement to the point of termination) with an intermediate straight portion and N crossing, is given by
Correct : C. DN + G [3N + N2)]
3. Rail tops of a track are placed
Correct : B. At an inward slope of 1 in 20
4. A train is hauled by 2-8-2 locomotive with 22.5 tonnes and on each driving axle. Assuming the coefficient of rail-wheel friction to be 0.25, what would be the hauling capacity of the locomotive?
Correct : B. 22.5 tonnes
5. The type of switch generally used for B.G. and M.G. tracks, is
Correct : C. Over riding
6. For an effective administration, Indian railway system has been divided into
Correct : D. Nine railway zones
7. If 'A' is the angle formed by two gauge faces, the crossing number will be
Correct : B. cot A
8. Heel divergency, the distance between the running faces of stock rail and gauge face of tongue rail, as recommended for Indian B.G. tracks, is
Correct : D. 135 mm
9. Pick up the incorrect statement from the following:
Correct : D. All the above
10. Tensile strength of steel used in rails should not be less than
Correct : C. 700 MPa
11. On Indian Railways standard length of rails for B.G. track, is
Correct : D. 42 ft (12.8 m)
12. Wing rails are provided
Correct : D. In crossing
13. The side slope of embankments for a railway track is generally taken as
Correct : C. 2 : 1
14. If S and H are strength and hardness index of a timber at 12% moisture content, the
composite sleeper index, is
Correct : B. (S + 10H)/20
15. If D is the distance between parallel tracks G between theoretical noses of two crossings measured parallel to tracks, is
Correct : A. (D - G - G )
16. To achieve best performance, the type of switch preferred to, is
Correct : C. Overriding switch
17. On B.G. tracks the distance of outer signal from station limit is kept
Correct : D. 540 m
18. The limiting value of cant deficiency for Meter Gauge routes is
Correct : B. 50 mm
19. The weight of the rails depends upon
Correct : D. All the above
20. The main advantage of a long rail over short one, is
Correct : D. All the above
21. 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
Correct : B. (i) and (iv)
22. Rail section first designed on Indian railways, was
Correct : A. Double headed
23. The lengths of the standard crossings in India for Broad gauge and Metre gauge tracks is same for
Correct : A. 1 in 8½ B.G. and, in 12 M.G.
24. For the purpose of track maintenance, the number of turn out equivalent to one track km is
Correct : D. 10
25. Dimensions of a plate girder are:
Correct : C. 851 mm × 254 mm
26. The check rails are placed opposite the crossing so that
Correct : C. Its two-third length is ahead of the nose of crossing
27. Consider the following surveys.
1. Reconnaissance survey
2. Preliminary survey
3. Traffic survey
4. Location survey
The correct sequence in which these surveys are conducted before the alignment of a track is finalised is
Correct : D. 3, 1, 2, 4
28. Check rails are provided on inner side of inner rails if sharpness of a B.G. curve, is more than
Correct : D. 8°
29. Largest percentage of material in the rail is in its
Correct : A. Head
30. The spread between the point and splice rails at a distance of 4.25 m is 50 cm. The size
of the crossing is
Correct : B. 1 in 8½
31. Packing of ballast is done
Correct : C. Under sleepers
32. The total gap on both sides between the inside edges of wheel flanges and gauge faces of the rail is kept as
Correct : D. 19 mm
33. The rail section which is not used on Indian Broad Gauge tracks, is
Correct : B. 40 R
34. In a diamond crossing, numbers of noses are
Correct : D. 6
35. Number of cotters used in CST-9 sleepers is
Correct : C. 4
36. In Indian railways, plate laying is usually done by
Correct : B. Telescopic method
37. Pick up the correct statement from the following:
Correct : D. All the above
38. A Broad Gauge branch line takes off as a contrary flexure from a main line. If the superelevation required for branch line is 10 mm and cant deficiency is 75 mm, the super-elevation to be actually provided on the branch line will be
Correct : D. 65 mm
39. The angle between the gauge faces of the stock rail and tongue rail, is called
Correct : A. Switch angle
40. In permanent way, ballast
Correct : D. All the above
41. Which of the following devices is used to transfer the wagons or locomotives to and from parallel tracks without any necessity of shunting?
Correct : C. Traverser
42. If absolute levels of rails at the consecutive axles A, B, and C separated by 1.8 metres are 100.505 m, 100.530 m, and 100.525 m respectively, the unevenness of rails, is
Correct : A. 0.065 m
43. Spacing of sleepers
Correct : C. At the middle of rails, is kept closer
44. 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)
Correct : B. -0.168 cm
45. Distance between the inner rail and check rail provided on sharp curve, is
Correct : C. 44 mm
46. 30 m long rails are used in
Correct : D. U.S.A.
47. 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
Correct : C. 13.21
48. Overall depth of a dog spike, is
Correct : A. 120.6 mm
49. To prevent creep in rails, the steel sleepers are fixed with rails by clips, bolts and
Correct : D. Four keys
50. 52 kg rails are mostly used in
Correct : A. Broad Gauge
51. Safe speed (V) on a curve of radius 970 metres provided with two transition curves on Board Gauge track, is
Correct : C. 132 km/hour
52. Widening of gauge is provided if degree of the curve, is
Correct : C. More than 4½°
53. The height of the rail for 52 kg rail section is
Correct : B. 156 mm
54. The life of a wooden sleeper depends upon
Correct : D. All the above
55. Anti-creep anchors are fixed to rails by
Correct : D. All the above
56. Sleeper density in India is normally kept as
Correct : A. (M + 2) to (M + 7)
57. Composite sleeper index determines
Correct : B. Suitability of wooden sleepers
58. If G is gauge distance and a is crossing, the distance between the nose of acute crossing and nose of obtuse crossing of a rail diamond, measured along the rail not forming the diamond, is
Correct : A. G
59. Loose jaws of steel trough sleepers are made of
Correct : D. Spring steel
60. Regional Indian railways use different types of sleepers according to their
Correct : D. All the above
61. In Indian railways, the ratio of axle load and weight of rail, is
Correct : C. 512
62. Maximum value of 'throw of switch' for Broad Gauge track is
Correct : D. 115 mm
63. Top surface of steel sleepers, is
Correct : B. Provided a cant of 1 in 20 inward
64. If D distance between the noses of crossing measured parallel to the main track, is
Correct : B. D
65. Metal sleepers are superior to wooden sleepers with respect to
Correct : B. Life
66. Charles Blacker Vignoles invented the flat footed rails in
Correct : B. 1836
67. A triangle of railway consists of
Correct : C. Two turn outs and one split
68. A treadle bar is used for
Correct : A. Interlocking points and signal
69. If L is length of a rail and R is the radius of a curve, the versine h for the curve, is
Correct : C. h = L²/8R
70. For metal sleepers with rounded edges, maximum size of ballast, is
Correct : B. 40 mm
71. Head width of 52 kg rail section is
Correct : C. 67 mm
72. Rail joint supported on a single sleeper, is known
Correct : C. Supported rail joint
73. Each block of a two-block concrete sleeper is
Correct : A. 722 mm × 295 mm × 271 mm and 215 kg in weight
74. The formation width for a double line Broad Gauge track in cutting (excluding drains) as
adopted on Indian Railways is
Correct : C. 10.21 m
75. Arrangement made to divert the trains from one track to another, is known as
Correct : C. Turnout
76. The standard dimensions of a wooden sleeper for a B.G. railway track are
Correct : A. 2.74 m × 25 cm × 13 cm
77. The limiting value of cant excess for Broad Gauge is
Correct : C. 75 mm
78. Indian Railways detects the rail flow by
Correct : D. Kraut Kramer Rail flow detector
79. The gradient on which an additional engine is required to negotiate the gradient, is called
Correct : B. Pusher gradient
80. If D is distance between centres of two parallel tracks of gauge G with entire curved leads and equal angles of crossing, total length of crossover, is
Correct : A. D (4R - 2G - D)]
81. Which of the following mechanical devices is used to ensure that route cannot be changed while the train is on the point even after putting back the signal?
Correct : C. Iock bar
82. Pot sleepers are used if degree of the curve does not exceed
Correct : A. 4°
83. Burnettising is done for the preservation of
Correct : A. Wooden sleepers
84. Consider the following statements:
Automatic signalling system results in
1. Greater risk
2. Higher efficiency
3. Avoidance of block instruments
4. Higher operating cost
Of these statements
Correct : D. 2 and 3 are correct
85. A kink is made in stock rails, ahead of the toe of switch at a distance of
Correct : B. 15 cm
86. Rails are fixed on steel sleepers
Correct : C. By keys in lugs or jaws
87. Largest dimension of a rail is its
Correct : A. Height
88. The rail section which is not used on Indian metre gauge tracks, is
Correct : D. 40 R
89. Advantage of automatic signalling, is:
Correct : D. All the above
90. For developing thinly populated areas, the correct choice of gauge is
Correct : C. Narrow Gauge
91. Coning of wheels
Correct : D. All the above
92. An extra 7.5 cm ballast width is not provided on outer side on a curve, if its degree is
Correct : D. 3°
93. Standard size of wooden sleeper for Broad Gauge track is
Correct : A. 275 × 25 × 13 cm
94. By interchanging gibs and cotters of a pot sleeper, gauge may be slackened by
Correct : C. 3.2 mm
95. The main function of sleepers, is
Correct : D. All the above
96. The limiting value of cant gradient for all gauges is
Correct : B. 1 in 720
97. The spike commonly used to fix rails to wooden sleepers in Indian railways, is
Correct : D. All the above
98. Track construction involves preparation of
Correct : D. All the above
99. Study the following statements regarding creep.
(i) Creep is greater on curves than on tangent railway track,
(ii) Creep in new rails is more than that in old rails,
(iii) Creep is more on steep gradients than on level track. The correct answer is
Correct : B. (i) and (ii)
100. According to Indian Railway Board, no diamond crossing should be flatter than