Geometric design of Railway Track MCQ

21. Approximately ____________ rails are mostly used in Broad gauge.

  1. 24.8 kg
  2. 52 kg
  3. 44.7 kg
  4. None of the above
Answer
Answer. b

22. The maximum speed on a 3° broad gauge curve according to Martin’s formula is

  1. 88.97 kmph
  2. 67.45 kmph
  3. 122.59 kmph
  4. 97.88 kmph
Answer
Answer. d

23. The distance through which the tongue rail moves laterally at the toe of the switch for movement of trains is called

  1. flange way clearance
  2. heel divergence
  3. throw of the switch
  4. flange way of the heel
Answer
Answer. c

24. Staggered rail joints are generally provided

  1. on curves
  2. on tangents
  3. on bridges
  4. in tunnels
Answer
Answer. a

25. Two parallel railway lines are to be connected by a reverse curve, each section of the curve having the same radius. If the centre line are 8 metre apart and maximum distance between the tangent points is 32 metre, the maximum allowable radius of the curves will be

  1. 4 metre
  2. 8 metre
  3. 32 metre
  4. 48 metre
Answer
Answer. c

26. Marshalling yard in railway system provides facilities for

  1. maintenance of rolling stock
  2. safe movements of passengers and coaches
  3. receiving, breaking up, re-forming and dispatching onwards-of trains
  4. receiving, loading, unloading and delivery of goods and vehicles, and scheduling their further functioning
Answer
Answer. c

27. Two parallel railway lines are to be connected by a reverse curve, each section having the same radius. If the lines are 12 m apart and the maximum distance between tangent points measured parallel to the straights is 48m, then the maximum allowable radius will be

  1. 51.1 m
  2. 52.3 m
  3. 53.5 m
  4. 54.7 m
Answer
Answer. a

28. Perpendicular offset from the junction of a transition curve and circular curve to the tangent is equal to

  1. 0.5 × Shift
  2. Shift
  3. 4 × Shift
  4. 2 × Shift
Answer
Answer. a

29. A train is running on a wide gauge at a speed of 85 kmph and has to negotiate a curvature. If overturning is to be avoided at this speed, then the type of curvature required would be

  1. Compound curve
  2. Base curve
  3. Vertical curve
  4. Transition curve
  5. Lag curve
Answer
Answer. d

30. Overall depth of a dog spike is

  1. 155.9 mm
  2. 120.6 mm
  3. 150 mm
  4. 135 mm
Answer
Answer. b
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