Railway Engineering

221. The purpose of providing fillet in a rail section is to

1. Increase the lateral strength
2. Increase the vertical stiffness
3. Avoid the stress concentration
4. Reduce the wear

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222. The quantity of stone ballast required per metre tangent length, is

1. 1.15 m³
2. 1.14 m³
3. 1.13 m³
4. 1.11 m³

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223. The rail is designated by its

1. Length
2. Weight
3. Cross-section
4. Weight per unit length

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224. The rail section which is not used on Indian Broad Gauge tracks, is

1. 35 R
2. 40 R
3. 45 R
4. 55 R

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225. The rail section which is not used on Indian metre gauge tracks, is

1. 25 R
2. 30 R
3. 35 R
4. 40 R

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226. The rails get out of their original positions due to insufficient expansion gap. This phenomenon is known

1. Hogging
2. Buckling
3. Creeping
4. None of these

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227. The reception signal is
(i) Outer signal
(ii) Home signal
(iii) Starter
(iv) Advanced starter
The correct answer is

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

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228. The shape of transition curve used by Indian Railways is

1. Cubic parabola
2. Spiral
3. Sine curve
4. Lemniscates of Bernoulli

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229. The side of a rail diamond may be obtained by dividing the gauge of track by

1. Sine of acute crossing
2. Cosine of acute crossing
3. Tangent of acute crossing
4. Cotangent of acute crossing

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230. The side slope of embankments for a railway track is generally taken as

1. 1 : 1
2. 1.5 : 1
3. 2 : 1
4. 1 : 2

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