Q.

Among the following, which can be adopted for providing support for soft strata?

A. bents of aluminum
B. bents of iridium
C. bents of steel
D. bents of plastic
Answer» C. bents of steel
Explanation: the provision of soft strata must be done for withstanding the excavation. it can be provided by bents of wood, bents of steel, liner plates and poling, which are placed to retain material between the adjacent bents.
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