Railways problems
- 1. If L is length of a rail and R is the radius of a curve, the versine h for the curve, is
Options- A.
- B.
- C.
- D.
- E.
Discuss
Correct Answer:
- 2. The tread of wheels is provided an outward slope of
Options- A. 1 in 10
- B. 1 in 15
- C. 1 in 20
- D. 1 in 25
- E. 1 in 30 Discuss
Correct Answer: 1 in 20
- 3. Bearing plates are used to fix
Options- A. flat footed rails to the wooden sleepers
- B. double headed rails to the wooden sleepers
- C. bull headed rails to the wooden sleepers
- D. flat footed rails to the cast iron sleepers
- E. none of these. Discuss
Correct Answer: flat footed rails to the wooden sleepers
- 4. If D is distance between centres of two parallel track of gauge G, then, total length of cross-over (from the point of commencement to the point of termination) with an intermediate straight portion and N crossing, is given by
Options- A. DN + G (N + 1 + N2)
- B. DN + G (2N + 1 + N2)
- C. DN + G (3N + 1 + N2)
- D. DN + G (4N + l +N2) Discuss
Correct Answer: DN + G (3N + 1 + N2)
- 5. The quantity of stone ballast required per metre tangent length, is
Options- A. 1.15 m3
- B. 1.14 m3
- C. 1.13 m3
- D. 1.12 m3
- E. 1.11 m3 Discuss
Correct Answer: 1.11 m3
- 6. If a 0.7% upgrade meets a 0.65% downgrade at a summit and the permissible rate of change of grade per chain length is 0.10%, the length of the vertical curve, is
Options- A. 10 chains
- B. 12 chains
- C. 14 chains
- D. 16 chains Discuss
Correct Answer: 14 chains
- 7. For flat bottom sleepers, maximum size of ballast, is
Options- A. 50 mm
- B. 40 mm
- C. 33 mm
- D. 25 mm
- E. 20 mm Discuss
Correct Answer: 50 mm
- 8. A kink is made in stock rails, ahead of the toe of switch at a distance of
Options- A. 10 cm
- B. 15 cm
- C. 20 cm
- D. 30 cm Discuss
Correct Answer: 15 cm
- 9. At a rail joint, the ends of adjoining rails, are connected with a pair of fish plates and
Options- A. 2 fish bolts
- B. 4 fish bolts
- C. 6 fish bolts
- D. 8 fish bolts Discuss
Correct Answer: 4 fish bolts
- 10. Coning of wheels
Options- A. prevent lateral movement of wheels
- B. provide smooth running of trains
- C. avoid excessive wear of inner faces of rail
- D. all the above. Discuss
Correct Answer: all the above.
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