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Typical Questions 1 TYPICAL QUESTIONS 1. Describe various functions of rail. Compare Bull headed rail vis-à-vis flat footed rail. 2. Give the details of various standard rail section being used on Indian Railways for B.G., M.G. & N.G. 3. What are various type of rail joints which are provided on Indian Railway ? Give details of supported rail joints and suspended rail joints. 4. Describe briefly the composition of rail steel. Give briefly the purpose of various elements of rail steels. 5. What do you understand by creep of rails ? Discuss various causes of creep of rails and how does if affect the track ? 6. Discuss various methods of prevention of creep. 7. Write short notes on (i) Bull headed rails; (ii) Flat footed rails; (iii)Staggered rail joints; (iv) Square rail joints. 8. What are the main function of sleepers ? Describe briefly the requirements of an ideal sleeper. 9. What is the standard size of wooden sleeper being used on Indian Railways. Describe briefly the purpose of adzing and augering of wooden sleepers. 10. What do you understand by CST-9 sleepers ? Describe briefly the limitation of CST-9 sleepers. 11. Describe the design of steel trough sleeper with the help of sketch. What are the advantages and disadvantages of concrete sleeper. 12. What are the prohibited locations for laying of concrete sleepers ? Describe briefly salient fea tures of maintenance of concrete sleeper. 13. What is the function of fish plates ? Draw sketch of fish plate giving various elements of the same. 14. What is the difference between ordinary fish plate and combination fish plate. 15. Write note on (i) dog spike; (ii) Rail screw; (iii) loose jaw; (iv) Insulated rail joint. 16. Differentiate with the help of sketches between (i) Rail screw and plate screw; (ii) Dog spike and Elastic spike; (iii) Ordinary bearing pate and anti-creep bearing plate. 17. What are the main features of concrete sleeper ? Draw sketch of elastic fastening. 18. Describe the main function of ballast. How do you assess the ballast requirements? Draw a dimensioned sketch of cross section of ballast. 19. Give in detail the ballast specifications being adopted on Indian Railway. Write short notes on (i) sub- ballast; (ii) oversize ballast; (iii) stack measurement; (iv) wagon measurement. 20. What is the main objective of formation ? Describe various aspect of designing a sub-grade. 21. Discuss briefly main aspects of design of cross section of formation. Draw a cross section of formation for B.G. single line section. 22. Write short notes on (i) Top width of formation; (ii) side drains & catch water drains; (iii) slip formation for B.G. single line section. 23. Describe the important features of construction of embankments. 24. Write short notes on the following: (i) Glued joints; (ii) Ballast caking; (iii) Types of slope failures.(iv) Function of ballast; (v) rail section. 25. What are the standard rail section in use on Indian Railway for broad gauge, metre gauge and narrow gauge. Also explain the functions of rails in the railway track. 26. (a) What is creep in the railway track ? (c) How does creep affect the track ? (d) Describe the various methods adopted to prevent the creep. 27. (a) What are the functions of sleepers in the track ? (b)How density and spacing of sleepers defined ? (c) What are the various types of sleepers used on Indian Railway ? 28. (a) What are the ballast specifications ? Name the test done for checking the physical proper ties of ballast, sampling and sample-size for acceptance of ballast. (b) Draw a sketch of standard ballast profile for a BG single line track (other than LWR/CWR), Indicate dimensions of width of formation length of sleeprs, gauage, ballast cushion & slope and the formation slope at top and sides. 29. (a) What are the advantage and disadvantages of Concrete sleepers ? (b) What are the advantages and disadvantages of Steel Trough sleepers ? 30. (a) What do you mean by construction embankments ? Draw a sketch showing the catch water drains in cuttings more than 4m in depth. (b) What do you mean by stability analysis of slopes ? Indicate the type of slope failure that occur in formation with sketches. 31. (a) What do you mean by weak formation and how is its rehabilitation carried out ? (b) What is the action plan for strengthening the formation as adopted on Indian Railways. 32. Distinguish between the following :( a) Flat bearing plate & Canted bearing plate; (ii) Fish plate & joggled fish plate; (iii) Canted bearing plate & Anti Creep bearing plate; (iv) Insulated joints & Glued joints. 33. Write short notes on the following : (a) End binding of wooden sleepers ; (b) loose jaw; (c) Universal Screw Clamp; (d) sub-ballast; (e) Rail Screws; 34. (a) List out all the components/materials which you will require to lay a new Railway track. (b) What tools and equipment will you require to use for this purpose ? 35. Describe the important features of construction of embankments. BIBLIOGRAPHY 1. Indian Railway Permanent Way Manual. 2. Track Manual of Indian Railways. 3. Technical Literature issued by R.D.S.O. 4. Technical Notes issued by Indian Railway Institute of Civil Engg.(IRICEN) Pune. 5. Engineering Code issued by Railway Board. 6. IRICEN (1995) Guide lines for identification of weak formation & their rehabilitation. 7. IRICEN (1997) – Remedial & corrective measure for slope stabilization. 8. IRICEN (1997) : Notes on track ballast. 9. RDSO G.E. Directorate (97)-Specification for track ballast. .
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