Final answer:
Henry Ford's adoption of 'human-high' work levels for chassis assembly exhibits the principles of scientific management or Taylorism,
Step-by-step explanation:
The correct answer is option scientific management. Henry Ford's approach to having the chassis assembly at 'human-high' work levels reflects the principles of scientific management, also known as Taylorism.
This principle, established by Frederick Winslow Taylor, was to improve productivity by reducing wasteful movements, a concept Ford embraced in his assembly lines.
By standardizing the height at which work was performed, Ford was minimizing the workers' physical strain and improving efficiency through ergonomic consideration.
This is an early example of the implementation of human factors psychology within the workplace to optimize both the workers' comfort and the production output.
Ford's assembly line innovation showcases how scientific management can be applied to create a workflow that is both effective and considerate of human ergonomics.
The correct answer is option Harrington Emerson's principle of scientific management is 'human-high' work.
Ford's adoption of the policy of 'human-high' work, with assembly lines at specific heights from the floor, aligns with Emerson's principle which aimed to improve productivity by reducing wasteful movements and optimizing work design.
By setting the assembly line at a height that was comfortable for the workers, Ford was able to increase efficiency and reduce physical strain, leading to higher productivity.