On this page
Questions to practise
Tell me about a design problem you solved. What was the problem, and what did you do?
They want to see how you think. They want a real problem, your options, and your final choice.
Use three steps: the problem, what you tried, what you chose. Example: 'A bracket kept cracking, so I changed the shape and the material.' Say why you chose that option. Add a number if you can.
How do you check that a design will work before it goes into production?
Testing is a key part of the job. They want to know you check your work carefully.
Name the test, what you measured, and what you changed after. Example: 'We ran a load test, found a weak point, and made it thicker.' Say what you learned from the result.
Tell me about a design that failed a test. What did you find, and what did you change?
They want to see how you handle problems. A failed test is normal in engineering.
Be honest and calm. Say what failed, what the test showed, and your change. End with the new result. This shows you learn from problems. Do not blame other people.
Tell me about your last project. What was your part in it?
They want to know what you did yourself, not only what the team did.
Use 'I' for your own work: 'I designed the housing. I ran the tests.' You can say 'we' for team work, but make your own part clear. Give one specific detail or number.
Can you explain a technical idea for someone who is not an engineer?
Engineers often explain ideas to managers, clients or other teams. Clear communication matters.
Use everyday words and one short comparison. Example: 'Think of it like a shelf. Too much weight in one spot, and it bends.' Avoid technical terms, or explain them in simple words.
Tell me about a part or product you helped design and enjoyed.
This is a friendly start. They want to hear what interests you and how you talk about your work.
Choose one project you know well. Say what the part does, what you did, and why you liked it. Keep it short, about one minute. Smile and speak slowly.
You used a technical term. Can you explain it more simply?
They want to check you really understand the idea and can make it clear.
Do not worry. Say 'Sure, put simply...' and explain in plain words. Add a small everyday example. This is a good chance to show you understand the idea well.
How do you work with other people on a design?
Design work needs teamwork with other engineers, production staff and suppliers.
Give one real example. Say who you worked with, what you shared, and how you agreed on a decision. Show that you listen and ask questions. Keep the focus on your own actions.
How do you choose between two design options?
They want to see how you make decisions using facts, not guesses.
Talk about what you compare: cost, strength, weight, time, or safety. Say how you check each option, for example with a calculation or a test. Then say what you chose and why.
What did you measure in your tests, and why?
They want specific answers. Numbers and measurements show careful work.
Name what you measured, like load, temperature or movement. Say why it was important for the design. Share a result if you can: 'It held twice the expected load.' Keep it clear and short.
Let me think of a good example from my work.
Clara
AI coach
Leo
AI coach
Lines to try
Let me think of a good example from my work.
Put simply, the problem was ___.
We tested it, and here is what we found.
My part was to ___.
After the test, I changed ___ because ___.
Think of it like ___. It works in a similar way.
Common questions
What if my English is not perfect?
That is okay. Speak slowly and use short sentences. Clear, simple English is often easier to follow than long sentences. If you need time, say 'Let me think for a moment.' If you do not understand a question, ask: 'Could you say that again, please?'
Should I use technical terms in my answers?
Some technical words are fine with an engineering manager. But be ready to explain them simply. If you use a term, add a short explanation or an everyday example. This shows you understand the idea, and not only the word.
How long should my answers be?
Most answers can be about one to two minutes. Give the main point first, then one real example. Stop when you have answered the question. The interviewer can ask for more detail if they want it.