Principal Design Engineer Interview Preparation Guide
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79 Principal Design Engineer Questions and Answers:

1 :: The change in the business industry now requires you to have a new set of skills you have to learn, how do you react to that?

First, find out which skills are the ones that you're currently lacking. Then identify what the steps would be to acquire/build those skills. Then take action to do so.

2 :: Top 11 Questions to Verify Experience and Credentials As Principal Design Engineer:

Sometimes people want a job a little too bad - and they may fudge their credentials and experience a bit.

If you've run into this problem, are worried about it, or have credentials and experience that are absolutely essential, you may need to ask a few verification questions.

If you are a candidate, you should review your resume and make sure you know all the key points, and that nothing has been misconstrued.


1. What grades did you get in college?

2. What were your responsibilities when you worked in job x?

3. How many people were on your team at your last job?

4. What will your previous manager/supervisor say when I ask where you needed to improve?

5. What was your beginning and ending salary at job x?

6. What were your beginning and ending titles at job x?

7. Are you eligible for rehire at job x?

8. What tools are necessary for performing job x?

9. Describe to me how you would perform [x typical job task].

10. What was the focus of your thesis?

11. When did you leave company x?

3 :: Give me a specific example of a time when you had to conform to a policy with which you did not agree?

You want to first understand why the policy was put into effect. From there, if you truly disagree with it, explain your position to your management. If they don't change it, then you must accept their decision and continue to work or the alternative decision would be to find a new job.

4 :: Why do you want this job As Principal Design Engineer?

This question typically follows on from the previous one. Here is where your research will come in handy. You may want to say that you want to work for a company that is Global Guideline, (market leader, innovator, provides a vital service, whatever it may be). Put some thought into this beforehand, be specific, and link the company’s values and mission statement to your own goals and career plans.

5 :: Tell us about a typical day at work. How does it start? What do you do?

At the beginning of each day, I inspect the work site to make sure that it is hazard-free. Once the work site is secured, I verify that all tools and equipment are adequate in supply. As soon as the work orders are delivered, I provide workers with security guidelines and carry out drills. During the workday, it is my duty to monitor workers to ensure that they are working according to the enforced safety policies and that any problems or accidents are quickly addressed.

6 :: What would you do if you won the lottery?

The interviewer is asking this question to find out what your true passion is. Ideally it aligns to the type of work you're interviewing for. If not, tie it back in terms of how it relates to the job, for example, "I believe I'll learn the necessary skills in this job to pursue my passion later on in life."

7 :: Why do you want to work for this company?

Again be honest. The interviewer will be able to sense very quickly if you're be disingenuous. Your answer should be base on your person reasons, career aspirations as well as research you've performed on the company. The most important thing you should do is make sure to relate your answer to your long-term career goals.

8 :: What type of people do you not work well with?

Be very careful answering this question as most organization employ professionals with an array of personalities and characteristics. You don't want to give the impression that you're going to have problems working with anyone currently employed at the organization. If you through out anything trivial you're going to look like a whiner. Only disloyalty to the organization or lawbreaking should be on your list of personal characteristics of people you can't work with.

9 :: Do you have any blind spots?

This question is often meant to trick candidates since acknowledgment of blind spots would indicate they were aware of them. Also, do not disclose bad habits or other personal concerns. Let the interviewer find out about your personal flaws through the course of the interview without directly stating these flaws.

10 :: If you were hiring a person for this job As Principal Design Engineer, what would you look for?

Discuss qualities you possess required to successfully complete the job duties.

11 :: Are you willing to work overtime or odd hours?

Be completely honest. You don't want to lie to get the job if you're not going to work the hours required.

12 :: What are the goals you've set for yourself?

You could discuss your goals with regards to these categories: Career goals, impact you want to leave on society, financial goals, academic goals, charitable goals.

13 :: Who has been an inspiration for you?

Cite your role models (possible examples could be your parents, people successful in the industry, world leaders, etc)

14 :: How much are you willing to sacrifice to be successful at work As Principal Design Engineer?

With anything comes sacrifice. The questions is how much of it are you willing to sacrifice with regards to work life balance, stress, etc?

15 :: Explain what are your weaknesses As Principal Design Engineer?

Red flags: This is the peanut butter to the previous question’s jelly. Again, everyone should expect it, so it's a bad sign if someone seems totally unprepared, or gives a stock answer like, "I'm a perfectionist." Also, of course, candidates crazy enough to blurt out some horrible personality trait should go in the red flagged pile.

Good answer: Candidates should talk about a real weakness they've been working on improving. For instance, they're not good at public speaking, but they've been taking a course to help them improve. Or maybe they feel that they're easily distracted when working online, but have installed software that helps them stay on task. Answers like these show a desire for improvement, self awareness and discipline.

16 :: Tell me about a decision you made recently and how you reached it As Principal Design Engineer?

The key is to show that you put a lot of thought (weighing out the pros and cons) but were able to be decisive. Be sure to explain your logic in arriving at the decision.

17 :: When were you most satisfied in your job As Principal Design Engineer?

I'm a people person. I was always happiest and most satisfied when I was interacting with community residents, making sure I was able to meet their needs and giving them the best possible comfort in a tough situation. It was my favorite part of the job, and it showed. Part of the reason I'm interested in this job is that I know I'd have even more interaction with the public, on an even more critical level.

18 :: How did you hear about the position As Principal Design Engineer?

Another seemingly innocuous interview question, this is actually a perfect opportunity to stand out and show your passion for and connection to the company and for job As Principal Design Engineer. For example, if you found out about the gig through a friend or professional contact, name drop that person, then share why you were so excited about it. If you discovered the company through an event or article, share that. Even if you found the listing through a random job board, share what, specifically, caught your eye about the role.

19 :: Think about the changes you have seen and tell me how you handle change?

You can cite personal life changes, work place changes, career changes, technology change, industry change. The key is to discuss how seeing or experiencing that change has helped your development. For example, the recent changes in social media has broadened my horizons and helped me learn new forms of efficient marketing.

20 :: What have you learned from mistakes on this job?

Candidates without specific examples often do not seem credible. However, the example shared should be fairly inconsequential, unintentional, and a learned lesson should be gleaned from it. Moving ahead without group assistance while assigned to a group project meant to be collaborative is a good example.

21 :: Tell me about a time when you successfully handled a situation?

For this question, the interviewer wants to know what you do in a situation that doesn’t have a clear answer. This will help the interviewer know how you respond to unforeseen challenges.

22 :: What is your greatest strength As Principal Design Engineer?

This is your time to shine. Just remember the interviewer is looking for work related strengths As Principal Design Engineer. Mention a number of them such as being a good motivator, problem solver, performing well under pressure, being loyal, having a positive attitude, eager to learn, taking initiative, and attention to detail. Whichever you go for, be prepared to give examples that illustrate this particular skill.

23 :: What have you done to improve your knowledge As Principal Design Engineer in the last year?

Try to include improvement activities that relate to the job As Principal Design Engineer. A wide variety of activities can be mentioned as positive self-improvement. Have some good ones handy to mention.

24 :: Tell me about a difficult decision you've made in the last year As Principal Design Engineer?

We all have difficult decisions in our lives. Show how you were able to arrive at it and then how you decisively acted.

25 :: If you felt like you were hitting the proverbial "wall" and getting burned out, what would you do to re-energize yourself?

Take a break to rest. Work in smaller increments of time to increase focus with breaks in between. Delegate tasks to those that are willing to help.

26 :: What would you like to avoid completely in your next job As Principal Design Engineer?

Bad business ethics, teammates / managers that are disrespectful / inconsiderate. But of course, this job wouldn't have things like this right?

27 :: Why do you want to work in this industry As Principal Design Engineer?

Make sure you research the industry first. Then find at least 3 core things about that industry that you're passionate about (for example: how their solutions impact clients, their culture, the leadership, etc)

28 :: How many tennis balls can you fit into a limousine? 1,000? 10,000? 100,000? Seriously?

Well, seriously, you might get asked brainteaser questions like these, especially in quantitative jobs. But remember that the interviewer doesn’t necessarily want an exact number—he wants to make sure that you understand what’s being asked of you, and that you can set into motion a systematic and logical way to respond. So, just take a deep breath, and start thinking through the math. (Yes, it’s OK to ask for a pen and paper!)

29 :: Why are manhole covers round?

This is a classic brainteaser, which was reportedly first asked by a Microsoft interviewer. Here's how to ""solve"" this brainteaser (remember to speak and reason out loud while solving this brainteaser): Why are manhole covers round? Could there be a structural reason? Why aren't manhole covers square? It would make it harder to fit with a cover. You'd have to rotate it exactly the right way.
The pipes below are also round, so fitting them might be easier, as might be making them. So many manhole covers are round because they don't need to be rotated. There are no corners to deal with. Also, a round manhole cover won't fall into a hole because it was rotated the wrong way, so it's safer. Looking at this, it seems corners are a problem. You can't cut yourself on a round manhole cover. And because it's round, it can be more easily transported. One person can roll it.

30 :: What is your greatest strength? How does it help you As Principal Design Engineer?

One of my greatest strengths, and that I am a diligent worker... I care about the work getting done.. I am always willing to help others in the team.. Being patient helps me not jump to conclusions... Patience helps me stay calm when I have to work under pressure.. Being a diligent worker.. It ensures that the team has the same goals in accomplishing certain things.