The First Type of Worker That Was the Subject of a Motion

question 22

Multiple Choice

The first type of worker that was the subject of a motion study was a

• A)bricklayer
• B)lathe operator
• C)Ford assembly line worker
• D)textile loom operator

---

Definitions:

Dark Adaptation

The process by which the eyes increase their sensitivity to low levels of light.

Rods

Photoreceptor cells in the retina of the eye that function in low light conditions and are responsible for night vision.

Cones

Cells in the eye's retina called photoreceptors are accountable for perceiving color and operate optimally in well-lit conditions.

Blind Spot

An area in the visual field that lacks photoreceptor cells because it is where the optic nerve exits the eye, leading to a gap in visual information.