Which of the following statements about Taylor’s contribution to scie…

The correct answer is Option (4) → Scientific management requires a careful investigation of the many modifications of the same implement.

Option (1) One of Taylor’s four principles is the scientific selection of the foreman. — False. Taylor’s second principle is the scientific selection of the workman, so that each worker suits the job.

Option (2) A standard implement stays in use until fatigue study shows another implement to be still better. — False. A standard implement stays in use until motion and time study shows another implement to be still better.

Option (3) One of Taylor’s four principles is intimate and friendly cooperation between the owners and the management. — False. The fourth principle is intimate and friendly cooperation between the management and the employees, that is, between those who manage and those who do the work.

Option (4) Scientific management requires a careful investigation of the many modifications of the same implement. — True. Taylor first wanted a careful investigation of the many forms of the same implement that had grown under the rule of thumb. The good points of these were then joined into one standard implement, so the worker could work faster and with greater ease.