Which set of activities constitutes the three-link Earthwork System?

Which set of activities constitutes the three-link Earthwork System?

• A. Haul, dump, and return; Spread and compact; Excavate & load
• B. Excavate & load; Haul, dump, and return; Spread and compact
• C. Spread and compact; Excavate & load; Haul, dump, and return
• D. Excavate; Load; Haul

Answer: (B)

The three-link Earthwork System is built on three linked operations that move earth from removal to final placement: excavation and loading, the haul and return cycle, and placement with compaction. The best answer reflects that sequence by listing excavation and loading first (removing material and putting it on the transport), hauling, dumping, and returning second (the transportation cycle including the empty return trip), and spreading and compacting last (placing the material and achieving the required density and grade). This order mirrors how earthwork actually progresses: you remove material, transport and unload it at the destination, then spread and compact it to meet specifications. The other options disrupt the flow or split the links, such as starting with spreading and compacting, or treating loading as a separate link rather than part of excavation.

The three-link Earthwork System is built on three linked operations that move earth from removal to final placement: excavation and loading, the haul and return cycle, and placement with compaction. The best answer reflects that sequence by listing excavation and loading first (removing material and putting it on the transport), hauling, dumping, and returning second (the transportation cycle including the empty return trip), and spreading and compacting last (placing the material and achieving the required density and grade). This order mirrors how earthwork actually progresses: you remove material, transport and unload it at the destination, then spread and compact it to meet specifications. The other options disrupt the flow or split the links, such as starting with spreading and compacting, or treating loading as a separate link rather than part of excavation.