Question

1.3.2 test (cst): science and engineering
an engineering team has come to the stage in the engineering design process in which it is iterating to improve the solution. what is one thing the team might be doing?

a. identifying the requirements necessary for the engineering problem to be solved
b. redesigning a prototype based on how well the original prototype met the criteria and constraints
c. brainstorming different possible solutions to the engineering problem
d. analyzing the testing results to help the team evaluate possible solutions

Explanation:

• Option A: Identifying requirements is part of the problem - definition stage, not the improvement stage.
• Option B: When iterating to improve a solution, engineers often redesign a prototype. They look at how well the original prototype met the criteria (like performance, cost, etc.) and constraints (like time, resources) and then make changes to enhance it. This fits the "iterating to improve the solution" stage.
• Option C: Brainstorming solutions is part of the ideation stage, before the prototype is made and improvement starts.
• Option D: Analyzing testing results is part of the evaluation of the prototype, but the act of redesigning based on those results (which is part of iteration) is more about the improvement action.

Answer:

B. Redesigning a prototype based on how well the original prototype met the criteria and constraints