The ballast consists of such materials as broken stone, furnace slag, gravel, cinders or earth, the lower layers commonly consisting of coarser materials than the top ones, and its purpose is to provide a firm, well-drained foundation in which the sleepers or crossties may be embedded and held in place, and by which the weight of the track and the trains may be distributed over the road-bed. [Please select]
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I was using the truck to haul crossties to the Moffat Tunnel. [Please select]
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Andrews at last broke off the end of his last box car and dropped crossties on the track as he ran. [Please select]
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She wuz hangin' to the bridge Where she dropt down thro' the crossties, with one arm about a sill, An' the other round the baby, who wuz yellin' fur to kill. [Please select]
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