Step 1: Concept
Techniques of Scientific Management by F.W. Taylor.
Step 2: Meaning
Motion study refers to the detailed study of bodily movements undertaken while doing a job, aimed at eliminating wasteful motions to boost productivity.
Step 3: Analysis
• Statements (A), (B), and (C) accurately describe the core objectives, processes, and historical outcomes of Taylor's motion study.
• Determining the number of workers required, framing incentive schemes, and calculating labor costs rely on knowing the standard time required to complete a task.
• Therefore, these activities are the primary objectives of
Time Study, not Motion Study.
Step 4: Conclusion
Option (D) describes Time Study, making it the incorrect statement regarding Motion Study.
Final Answer: (D)