1. Which of the following is an advantage of electric traction over other methods of traction ?
2. Which of the following is the voltage for single phase A.C. system ?
3. Long distance railways use which of the following ?
4. The speed of a locomotive is controlled by ______.
5. Main traction systems used in India are, those using
6. In India diesel locomotives are manufactured at
7. For diesel locomotives the range of horsepower is
8. _______ locomotive has the highest operational availability.
9. The horsepower of steam locomotives is _______.
10. The overall efficiency of steam locomotive is around
11. In tramways which of the following motors is used ?
12. In a steam locomotive electric power is provided through
13. Which of the following drives is suitable for mines where explosive gas exists ?
14. In case of locomotives the tractive power is provided by
15. Overload capacity of diesel engines is usually restricted to
16. In case of steam engines the steam pressure is
17. The steam engine provided on steam locomotives is
18. Electric locomotives in India are manufactured at
19. The wheels of a train, engine as well as bogies, are slightly tapered to
20. Automatic signalling is used for which of the following trains ?
21. The efficiency of diesel locomotives is nearly
22. The speed of a superfast train is _______.
23. The number of passanger coaches that can be attached to a diesel engine locomotive on broad gauge is usually restricted to
24. Which of the following state capitals is not on broad gauge track ?
25. Which of the following is the advantage of electric braking ?
26. Which of the following braking systems on the locomotives is costly ?
27. Tractive effort is required to _______.
28. For given maximum axle load tractive efforts of AC. locomotive will be
29. Co-efficient of adhesion reduces due to the presence of which of the following ?
30. Due to which of the following co-efficient of adhesion improves ?
31. Quadrilateral speed-time curve pertains to which of the following services ?
32. Which of the following is the disadvantage of electric traction over other systems of traction ?
33. Co-efficient of adhesion is ______.
34. Speed-time curve of main line service differs from those of urban and suburban services on following account
35. The rate of acceleration on suburban or urban services is restricted by the consideration of
36. The specific energy consumption of a train depends on which of the following ?
37. The friction at the track is proportional to _______.
38. The air resistance to the movement of the train is proportional to
39. The normal value of adhesion friction is
40. The pulsating torque exerted by steam locomotives causes which of the following?
41. Which of the following braking systems is used on steam locomotives ?
42. Vacuum is created by which of the following?
43. The resistance encountered by a trainin motion is on account of
44. Battery operated trucks are used in
45 method can bring the locomotive to dead stop.
46. The value of co-efficient of adhesion will be high when rails are
47. The voltage used for suburban trains in D.C. system is usually
48. For three-phase induction motors which of the following is the least efficient method of speed control ?
49. Specific energy consumption becomes
50. In main line service as compared to urban and suburban service
51. Locomotive having monomotor bogies
52. Series motor is not suited for traction duty due to which of the following account ?
53. When a bogie negotiates a curve, reduction in adhesion occurs resulting in sliding. Thus sliding is acute when
54. Energy consumption in propelling the train is required for which of the following?
55. An ideal traction system should have
56 ______ have maximum unbalanced forces.
57. Specific energy consumption is affected by which of the following factors ?
58. In case of ________ free running and coasting periods are generally long.
59. Overhead lines for power supply to tramcars are at a minimum height of
60. The return circuit for tramcars is through
61. Specific energy consumption is least in _______ service.
62. Locomotives with monometer bogies have _____.
63 _______ was the first city in India to adopt electric traction.
64 _______ frequency is not common in low frequency traction system
65. For 25 kV single phase system power supply frequency is
66. Power for lighting in passanger coach, in a long distance electric train, is provided
67. In India, electrification of railway track was done for the first time in which of the following years ?
68. Suri transmission is _______.
69. In case of a steam engine an average coal consumption per km is nearly
70. Which of the following happens in Kando system ?
71. For which of the following locomotives the maintenance requirements are the least?
72. Which of the following methods is used to control speed of 25 kV, 50 Hz single phase traction ?
73. If the co-efficient of adhesion on dry rails is 0.26, which of the following could be the value for wet rails ?
74 watt-hours per tonne km is usually the specific energy consumption for suburban services.
75. The braking retardation is usually in the range
76. The rate of acceleration on suburban or urban service is in the range
77. The coasting retardation is around ______.
2. Which of the following is the voltage for single phase A.C. system ?
3. Long distance railways use which of the following ?
4. The speed of a locomotive is controlled by ______.
5. Main traction systems used in India are, those using
6. In India diesel locomotives are manufactured at
7. For diesel locomotives the range of horsepower is
8. _______ locomotive has the highest operational availability.
9. The horsepower of steam locomotives is _______.
10. The overall efficiency of steam locomotive is around
11. In tramways which of the following motors is used ?
12. In a steam locomotive electric power is provided through
13. Which of the following drives is suitable for mines where explosive gas exists ?
14. In case of locomotives the tractive power is provided by
15. Overload capacity of diesel engines is usually restricted to
16. In case of steam engines the steam pressure is
17. The steam engine provided on steam locomotives is
18. Electric locomotives in India are manufactured at
19. The wheels of a train, engine as well as bogies, are slightly tapered to
20. Automatic signalling is used for which of the following trains ?
21. The efficiency of diesel locomotives is nearly
22. The speed of a superfast train is _______.
23. The number of passanger coaches that can be attached to a diesel engine locomotive on broad gauge is usually restricted to
24. Which of the following state capitals is not on broad gauge track ?
25. Which of the following is the advantage of electric braking ?
26. Which of the following braking systems on the locomotives is costly ?
27. Tractive effort is required to _______.
28. For given maximum axle load tractive efforts of AC. locomotive will be
29. Co-efficient of adhesion reduces due to the presence of which of the following ?
30. Due to which of the following co-efficient of adhesion improves ?
31. Quadrilateral speed-time curve pertains to which of the following services ?
32. Which of the following is the disadvantage of electric traction over other systems of traction ?
33. Co-efficient of adhesion is ______.
34. Speed-time curve of main line service differs from those of urban and suburban services on following account
35. The rate of acceleration on suburban or urban services is restricted by the consideration of
36. The specific energy consumption of a train depends on which of the following ?
37. The friction at the track is proportional to _______.
38. The air resistance to the movement of the train is proportional to
39. The normal value of adhesion friction is
40. The pulsating torque exerted by steam locomotives causes which of the following?
41. Which of the following braking systems is used on steam locomotives ?
42. Vacuum is created by which of the following?
43. The resistance encountered by a trainin motion is on account of
44. Battery operated trucks are used in
45 method can bring the locomotive to dead stop.
46. The value of co-efficient of adhesion will be high when rails are
47. The voltage used for suburban trains in D.C. system is usually
48. For three-phase induction motors which of the following is the least efficient method of speed control ?
49. Specific energy consumption becomes
50. In main line service as compared to urban and suburban service
51. Locomotive having monomotor bogies
52. Series motor is not suited for traction duty due to which of the following account ?
53. When a bogie negotiates a curve, reduction in adhesion occurs resulting in sliding. Thus sliding is acute when
54. Energy consumption in propelling the train is required for which of the following?
55. An ideal traction system should have
56 ______ have maximum unbalanced forces.
57. Specific energy consumption is affected by which of the following factors ?
58. In case of ________ free running and coasting periods are generally long.
59. Overhead lines for power supply to tramcars are at a minimum height of
60. The return circuit for tramcars is through
61. Specific energy consumption is least in _______ service.
62. Locomotives with monometer bogies have _____.
63 _______ was the first city in India to adopt electric traction.
64 _______ frequency is not common in low frequency traction system
65. For 25 kV single phase system power supply frequency is
66. Power for lighting in passanger coach, in a long distance electric train, is provided
67. In India, electrification of railway track was done for the first time in which of the following years ?
68. Suri transmission is _______.
69. In case of a steam engine an average coal consumption per km is nearly
70. Which of the following happens in Kando system ?
71. For which of the following locomotives the maintenance requirements are the least?
72. Which of the following methods is used to control speed of 25 kV, 50 Hz single phase traction ?
73. If the co-efficient of adhesion on dry rails is 0.26, which of the following could be the value for wet rails ?
74 watt-hours per tonne km is usually the specific energy consumption for suburban services.
75. The braking retardation is usually in the range
76. The rate of acceleration on suburban or urban service is in the range
77. The coasting retardation is around ______.
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