Ballast packed below and around the sleepers to transfer the load from sleepers to formation, generally consists of

Related MCQs

• The ballast thrown around the sleepers and loosely filled on slopes is called boxing of ballast.
• For even distribution of load through ballast, load dispersal is assumed as
• If w is width of sleepers, s is sleeper spacing and d is depth of ballast then
• The railway sleepers should act as elastic medium between the rails and the ballast.
• For metal sleepers with rounded edges, maximum size of ballast, is
• If sleeper density is M + 7 for 13 m rails, the minimum depth of ballast under wooden sleepers (25 cm × 13 cm), is
• For flat bottom sleepers, maximum size of ballast, is
• The size of ballast used on Indian railways for wooden sleepers is
• The size of ballast used on Indian railways for steel sleepers is
• A good ballast, when laid on formation, should have sufficient voids.