QB UT-I Railway Engg.

1. Which of the following is not a factor influencing the choice of gauge? a) Cost of construction b) Volume of traffic c) Topography of the area d) Weather conditions 2. Which of the following is recommended while choosing a gauge in a particular country? a) Providing a uniform gauge throughout the country b) Providing two types of gauge in a country c) Providing three types of gauge in a country d) Providing more than three types of gauge in a country 3. How is speed of the train related to the gauge distance provided? a) Directly proportional b) Inversely proportional c) Not related to the gauge distance provided d) Varies according to the topography of the place 4. A narrow gauge can carry more traffic as compared to the broad gauge. a) True b) False 5. As per Indian Railways, the broad gauge has been classified into _____ groups based on _____ criteria. a) Four, speed b) Five, terrain c) Four, terrain d) Five, speed 6. Identify the correct relation. a) Wheel diameter = 0.25 times gauge distance b) Wheel diameter = gauge distance c) Wheel diameter = 0.75 times gauge distance d) Wheel diameter = 1.5 times gauge distance 7. If the width of the gauge is increased, which of the following cost is increased significantly? a) Cost of construction b) Cost of acquiring land c) Cost of rolling stock d) Cost of signals 8. A new rail line needs to be constructed in a sparsely populated town. Which type of gauge can be recommended? a) Broad gauge b) Standard gauge c) Narrow gauge

d) Meter gauge View Answer 9. Metre gauge track routes in India can be classified as ______ a) P-route, Q-route and R-route b) Q-route, R-route and S-route c) R-route, S-route and T-route d) S-route, T-route and U-route View Answer 10. The operating cost per tonne per km _______ with increase in gauge width. a) Decreases b) Independent c) Increases d) Neither increase nor decrease 11. What does alignment of a railway track mean? a) Direction and position of the centreline of track in horizontal plane only b) Direction and position @ 50mm distance on either side of centreline of track c) Direction and position of the centreline of track in both horizontal and vertical planes d) Direction and position of the centreline of track in vertical plane only 12. Which of the following is not an example of vertical alignment? a) Level track b) Gradient c) Vertical curve d) Gauge 13. The alignment of a railway track can be changed very easily. a) True b) False 14. How is accuracy of the rail alignment related to the operating speed of the train? a) Inversely proportional b) Directly proportional c) No relation exists

d) Varies from place to place 15. The alignment survey of the Mumbai-Ahmedabad High Speed Corridor was done by which agency? a) JICA b) SNCF c) Indian Railways d) RITES 16. Which of the following software cannot be used to design a railway track alignment? a) Open Rail Designer b) Trimble Quantum c) Ferro via d) Primavera 17. Which of the following is not a function of rails? a) Serving as a lateral guide b) Providing a continuous surface c) To provide drainage d) To provide a level surface 18. Through which of the following Rails transmit the load acting on it? a) Sleepers and Ballast b) Sleepers and fastenings c) Ballast d) Ballast and axle 19. The friction between the steel wheel and the steel rail is about ______ of the friction between the pneumatic tyre and a metalled road. a) two fifth b) one fifth c) one tenth

d) three fifth 20. In Double headed rails, once the head wears out it can be reused by inverting it. a) True b) False 20. Where should the centre of gravity of the rail section be located? a) Near to the bottom of the rail b) close to the upper portion c) close to the mid height d) Can be anywhere between the section 21. Which of the following is not a component of the rail? a) Head b) Web c) Ballast d) Foot 22. What is the reason that the head should have sufficient depth? a) To sustain vertical wear b) For lateral stiffness c) To make it cheap d) For proper maintenance 23. Why is the foot made wide? a) To avoid corrosion b) To avoid overturning c) For making it cost efficient d) For easy manufacturing 24. Which of the following statements is false? a) Sleepers hold the rail in correct gauge b) Sleepers transfer load from ballast to rails

c) Sleepers offer support to the rails d) Sleepers hold rails in correct alignment 25. Why is it necessary for the sleepers to act as an elastic structure? a) To absorb the vibrations of moving loads b) To make it cheap c) It is the material’s limitation d) To keep them intact 26. Which of the following is not a requirement of the design of the sleepers? a) It should be fixed and removed easily b) Track circuiting should be possible c) Maintenance cost should be minimum d) Bearing area should be sufficient 27. The sleepers should be as heavy as possible so that they can handle large amount of pressure. a) True b) False 28. Which of the following types of sleepers have the maximum service life? a) Wooden b) Steel c) Cast Iron d) Concrete 29. Which of the following is not a characteristic of Concrete sleepers? a) High weight b) High maintenance cost c) Mechanised maintenance only d) Good service life

30. Which of the following sleepers cannot be damaged by white ants but corrosion can occur? a) Cast Iron b) Wooden c) Steel d) Concrete 31. Which sleepers require insulating pads for track circuiting? a) Wooden sleepers b) Steel and CI sleepers c) Concrete sleepers d) Steel sleepers 32. Which type of sleeper has the maximum creep? a) Wooden b) Concrete c) Steel d) Cast Iron 33. The scrap value of concrete is _____ a) None b) High c) Low d) Higher than wooden 34. The number of sleepers per rail length is called as _____ a) sleeper spacing b) sleeper density c) sleeper gravity d) sleeper gradient

35. What does ‘M’ represent in the sleeper density formula M + x? a) Length of rail in metres b) Axle load c) Length of sleepers d) Type of route 36. In the sleeper density formula M + x, x does not vary according to which of the following factors? a) Type and section of rails b) Type of ballast c) The axle load of train d) The slope of track 37. Why the sleepers are closely spaced near the joints? a) Because of weakness of joints b) Because of coning of wheels c) Because of tilting of rails d) Because of more load at joints 38. What is the importance of the depth of a sleeper? a) It directs its stiffness b) It controls the bearing area c) It makes the rails stronger d) It lessens the maintenance cost View Answer 39. What is governed by the length and width of the sleeper? a) The bearing area

b) Cant value c) Drainage properties d) Stiffness 40. The index used to determine the suitability of a particular timber for use as a sleeper is called as _______ a) Composite strength index b) Composite sleeper index c) Compressive strength index d) Compressive sleeper index 41. What is the formula for the Composite sleeper index of a wooden sleeper? a) CSI = (S + 10H)/20 b) CSI = (S + 10H)/10 c) CSI = (S + 20H)/20 d) CSI = (S + 5H)/20 42. What does ‘S’ stand for in the CSI equation? 1. What is the importance of the depth of a sleeper? a) It directs its stiffness b) It controls the bearing area c) It makes the rails stronger d) It lessens the maintenance cost 43. What is governed by the length and width of the sleeper? a) The bearing area b) Cant value c) Drainage properties d) Stiffness 44. The index used to determine the suitability of a particular timber for use as a sleeper is called as _______

a) Composite strength index b) Composite sleeper index c) Compressive strength index d) Compressive sleeper index View Answer 45. What is the formula for the Composite sleeper index of a wooden sleeper? a) CSI = (S + 10H)/20 b) CSI = (S + 10H)/10 c) CSI = (S + 20H)/20 d) CSI = (S + 5H)/20 46. What does ‘S’ stand for in the CSI equation? a) General strength for green timber at 12% moisture content b) General strength for dry timber at 12% moisture content c) General strength for both green and dry timber at 12% moisture content d) General strength for both green and dry timber at 15% moisture content 47. Which of the following is not an advantage of Concrete sleepers? a) They have long lifespans b) They can be mass produced c) They have high scrap value d) They are not liable to corrosion 48. Why concrete sleepers can be used in Track circuited areas? a) They are heavy b) They are bad conductors of electricity c) They do not corrode d) They are easy to handle

49. The mono-block pre-stressed concrete sleepers are similar to which sleepers? a) German B-58 b) PCS-12 and PCS-1 c) Cast Iron sleepers d) Mono block post-tension concrete 50. What is the general 28-day crushing strength of concrete for mono block prestressed concrete type sleeper? a) 525kg/cm2 b) 600kg/cm2 c) 1676kg/cm2 d) 100kg/cm2 51. The two-block concrete sleepers have longer life than mono block sleepers. a) True b) False