Railway Maintenance Standards Quiz

Study Notes

Plain Track: Deep screening is required if the clean ballast cushion is less than 200mm for sectional speeds of 130 kmph and above, and less than 150mm for sectional speeds below 130 kmph.
Turnouts on Main Line: Deep screening is required if the clean ballast cushion is less than 200mm.
Loop Lines: Deep screening is required once every 15 years.

Rails:
- 60 kg 90 UTS: 1000 GMT
- 60 kg 72 UTS: 550 GMT
- 52 kg 90 UTS: 525 GMT
- 52 kg 72 UTS: 350 GMT
PSC Sleeper: On-condition basis (35 years in A&B routes)
Turnout:
- Switches:
  - 52 kg: 250 GMT or on condition basis (4-6 years in A&B routes)
  - 60 kg: 300 GMT or on condition basis (5-8 years in A&B routes)
- TWS: 52 kg & 60 kg - 800 GMT or on condition basis (14-18 years in A&B routes)
- CMS Crossing:
  - 52 kg & 60 kg – 350 GMT with replacement of fitting on condition basis, in case of in-situ reconditioning using Robotic welding machine (7-8 years in A&B routes)
  - 52 kg & 60 kg – 300 GMT in case of reconditioning using H3B/H3C IRS electrode
P-way Components (Fittings):
- Metal Liner: 400 GMT or 8 years, whichever is earlier, or on condition basis
- ERC: 400 GMT or 8 years, whichever is earlier, or on condition basis
- CGSSP: 400 GMT or 8 years, whichever is earlier, or on condition basis
Glued Joints: 400 GMT (tentative) for 60 kg (6mm). Other renewal criteria are unchanged.
Channel Sleeper:
- Galvanized Channel Sleeper: 14 years/800 GMT or on condition basis, whichever is earlier, with replacement of fitting as when necessary
- Rubber component: 400 GMT, on condition basis, whichever is earlier.