Questions: The Engineering Design Process

Question 1

What are the five steps of the engineering design process in order?

• A. Build, Test, Fix, Rebuild, Finish
• B. Ask, Imagine, Plan, Create, Improve
• C. Think, Draw, Cut, Glue, Present
• D. Research, Hypothesis, Experiment, Conclude, Report

Answer: (B)

The engineering design process follows Ask (understand the problem), Imagine (brainstorm solutions), Plan (choose and design), Create (build a prototype), and Improve (test and make better). The last option describes the scientific method, which is a different process.

Question 2

An engineer's first prototype should work perfectly if they planned well enough.

• T. True
• F. False

Answer: False

Even with excellent planning, first prototypes almost never work perfectly. That is expected and normal. The 'Improve' step exists because testing reveals problems that are impossible to predict just by thinking. The cycle of build-test-improve is what makes the final product good.

Question 3

Why is the engineering design process drawn as a circle or loop instead of a straight line?

Model answer: Because engineers go back to earlier steps when testing reveals problems. After improving, they may need to ask new questions, imagine new solutions, or plan again. The process repeats until the solution works well.

The cyclical nature of the design process is its most important feature. A straight line implies you are done after one pass. In reality, each round of testing teaches you something new, which sends you back to rethink, redesign, or rebuild. Professional engineers may cycle through dozens of iterations.