Question

A prosthetic is an artificial body part. An engineer is designing a prosthetic finger for a three-year-old child. What constraint should the engineer consider when she is selecting the material for the prosthetic finger design?
A.
The material must be strong and durable at a small size.
B.
The material must easily absorb and retain heat.
C.
The material must chemically react with air and water.
D.
The material must be a substance easily found in nature.

Answer 1

A. The material must be strong and durable at a small size.

Explanation: A prosthetic finger needs to withstand regular use and stresses while being small and lightweight for a child. Materials that corrode, retain heat, or must be "natural" are not desirable constraints.