Railway Engineering

51. Degree of a railway curve is defined as number of degrees subtended at the centre of a curve by an arc of

1. 10 m
2. 15 m
3. 20 m
4. 30.5 m

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52. Dimensions of a plate girder are:

1. 851 mm × 851 mm
2. 255 mm × 254 mm
3. 851 mm × 254 mm
4. 551 mm × 254 mm

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53. Distance between inner faces of the flanges, is kept

1. Equal to the gauge distance
2. Slightly less than the gauge distance
3. Slightly more than the gauge distance
4. None of these

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54. Distance between the inner rail and check rail provided on sharp curve, is

1. 40 mm
2. 42 mm
3. 44 mm
4. 46 mm

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55. Dog spikes are used for fixing rail to the

1. Wooden sleepers
2. CST-9 sleepers
3. Steel trough sleepers
4. Concrete sleepers

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56. Due to battering action of wheels over the end of the rails, the rails get bent down and are deflected at ends. These rails are called

1. Roaring rails
2. Hogged rails
3. Corrugated rails
4. Buckled rails

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57. Each block of a two-block concrete sleeper is

1. 722 mm × 295 mm × 271 mm and 215 kg in weight
2. 250 mm × 154 mm × 196 mm and 260 kg in weight
3. 525 mm × 350 mm × 275 mm and 280 kg in weight
4. None of these

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58. Fish plate is in contact with rail at

1. Web of rail
2. Fishing plane
3. Head of rail
4. Foot of rail

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59. Flange-way clearance is the distance

1. Between the adjoining faces of the running rail and the check rail near the crossing
2. Between the gauge faces of the stock rail and the tongue rail
3. Through which the tongue rail moves laterally at the toe of the switch
4. None of the above

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60. Flat mild steel bearing plates are used

1. For points and crossings in the lead portion
2. With wooden sleepers at locations where creep is likely to be developed
3. On all joints and curves
4. On all the above

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