A temporary long, narrow excavation that will be filled in soon?

A temporary long, narrow excavation that will be filled in soon?

• A. Draglines
• B. Trench
• C. Riprap
• D. Consolidation

Answer: (B)

A trench is a long, narrow excavation dug for things like laying pipes, cables, or drainage, and it’s typically opened for a specific task and then backfilled once that work is done. The key is its elongated shape and the fact that the surface is restored after installation, making it temporary in nature. Draglines are large machines used to remove earth and create larger open areas, not specifically a long, narrow return-to-fill channel. Riprap is rock placed to protect surfaces from erosion, not an excavation. Consolidation means compacting soil to increase density, not creating an opening.

A trench is a long, narrow excavation dug for things like laying pipes, cables, or drainage, and it’s typically opened for a specific task and then backfilled once that work is done. The key is its elongated shape and the fact that the surface is restored after installation, making it temporary in nature. Draglines are large machines used to remove earth and create larger open areas, not specifically a long, narrow return-to-fill channel. Riprap is rock placed to protect surfaces from erosion, not an excavation. Consolidation means compacting soil to increase density, not creating an opening.