61. Width of ballast section for Broad Gauge is_________________? A. 1.83 m B. 2.25 m C. 3.35 m D. 4.30 m ✅ The correct answer is option C.
62. Two important constituents in the com-position of steel used for rail are_________________? A. carbon and silicon B. manganese and phosphorous C. carbon and manganese D. carbon and sulfur ✅ The correct answer is option C.
63. In a B.G. railway track, the specified ruling gradent is 1 in 250. The horizontal curve of 3° on a gradient of 1 in 250 will have the permissible gradient of__________________? A. 1 in 257 B. 1 in 357 C. 1 in 457 D. 1 in 512 ✅ The correct answer is option B.
64. If a is the angle of crossing, then the number of crossings ‘N’ according to right angle method is given by_________________? A. Vi cot(cc/2) B. cot(oc/2) C. cot(A) D. Vi cosec(a/2) ✅ The correct answer is option C.
65. Number of cotters used in CST-9 sleepers is__________________? A. 2 B. 3 C. 4 D. 5 ✅ The correct answer is option C.
66. In a shunting signal if the red band is inclined at 45° it indicates_________________? A. stop B. proceed C. proceed cautiously D. none of the above ✅ The correct answer is option B.
67. The purpose of providing fillet in a rail section is to_________________? A. increase the lateral strength B. increase the vertical stiffness C. avoid the stress concentration D. reduce the wear ✅ The correct answer is option C.
68. The limiting value of cant excess for Broad Gauge is________________? A. 55 mm B. 65 mm C. 75 mm D. l00 mm ✅ The correct answer is option C.
69. The height of the rail for 52 kg rail section is_______________? A. 143 mm B. 156 mm C. 172 mm D. 129mm ✅ The correct answer is option B.
70. For a sleeper density of (n+5), the number of sleepers required for constructing a broad gauge railway track of length 650 m is____________________? A. 975 B. 918 C. 900 D. 880 ✅ The correct answer is option C.