Question

An engineer uses aluminum to build an airplane rather than composite
materials that are lighter and stronger. He does this because he is concemed
about the composite materials and how suddenly they can fail. This is an
example of
A. choosing a material that will show warning before it fails.
B. using a material for multiple applications,
C. using design techniques that increase efficiency and reduce
costs
D. using composite materials that combine strengths,

Answer 1

Answer:

A

Explanation:

I would assume A because it says in the problem statement that chooses aluminum because he is worried that composite will suddenly fail... therefore he would use aluminum because it would bend before breaking and therefore show warning.