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Normally earthwork is estimated for 30 m lead for distance and 1.5 m lift for height or depth, and this distance of 30 m and the height of 1.5 m are known as _____________(a) vertical lead and lift(b) normal lead and lift(c) horizontal lead and lift(d) transverse lead and lift |
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Answer» Right option is (b) normal lead and lift To explain I would say: Normal rate for earthwork is for 30 m lead and 1.5 m lift. For greater lead or lift the rates will be different (higher) for every unit of 30 m lead and for every unit of 1.5 m lift. The earthwork is, therefore, estimated separately for every 30 m lead and for every 1.5 m lift. |
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