Gantt charts were used to plan and coordinate construction steps on this large U.S. infrastructure project.

Gantt charts were used to plan and coordinate construction steps on this large U.S. infrastructure project.

• A. Hoover Dam
• B. Gantt chart
• C. Early Soviet Union
• D. Kanban

Answer: (A)

Gantt charts map out tasks, durations, and dependencies so a large project can be planned and tracked over time. Hoover Dam, built in the 1930s on the Arizona–Nevada border, was a massive U.S. infrastructure effort that required coordinating thousands of workers and many interdependent construction steps—excavation, foundations, dam structure, formwork, concrete pours, and the power plant. A Gantt-style schedule would let managers sequence these activities, allocate resources, and monitor progress against the timeline, helping keep the project moving despite its scale. Kanban is a flow-management method used mainly in manufacturing and software; the Early Soviet Union is a historical period, not a specific construction project; the option naming the chart itself is just the tool, not the project.

Gantt charts map out tasks, durations, and dependencies so a large project can be planned and tracked over time. Hoover Dam, built in the 1930s on the Arizona–Nevada border, was a massive U.S. infrastructure effort that required coordinating thousands of workers and many interdependent construction steps—excavation, foundations, dam structure, formwork, concrete pours, and the power plant. A Gantt-style schedule would let managers sequence these activities, allocate resources, and monitor progress against the timeline, helping keep the project moving despite its scale. Kanban is a flow-management method used mainly in manufacturing and software; the Early Soviet Union is a historical period, not a specific construction project; the option naming the chart itself is just the tool, not the project.