Concept:
Project management involves planning, scheduling, monitoring, and controlling project activities.
Various tools are used to:
• Schedule tasks
• Track project progress
• Manage resources and timelines
One of the most common scheduling tools is the Gantt Chart.
Step 1: Analyze Psychometric Chart.
A psychrometric chart is used in air conditioning and environmental engineering to study properties of moist air.
Hence, option A is incorrect.
Step 2: Analyze Gantt Chart.
A Gantt Chart is a bar-chart-based project management tool used for:
• Scheduling activities
• Monitoring timelines
• Tracking project progress
Hence, option B is correct.
Step 3: Analyze Mandley's Chart.
Mandley's Chart is not a standard project management tool.
Hence, option C is incorrect.
Step 4: Analyze Workability Chart.
Workability charts relate to concrete properties and material behavior, not project scheduling.
Hence, option D is incorrect.
Step 5: Choose the correct option.
The technique used in project management is the Gantt Chart.
Therefore, the correct answer is:
\[
{\text{(B) Gantt Chart}}
\]