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Mechanical Engineering Interview Questions

List of basic mechanical engineering interview questions has been compiled after consultation with some of the top-class professional engineers and employers. Many of the students and fresh graduates ask us to post job interview questions for mechanical engineers. Commonly asked questions during interviews have been divided into different sections. Interviewers try to ask one question from each section based on the job description of the post you are applying for.

General Introductory Questions:

Every student is a bit confused and under pressure when he sits in front of interviewer. So, all of the HR officers try to infuse courage and confidence into students by starting their interview with these simple questions:

  • Hello Mr. Engineer, please introduce yourself. This questions can be asked in different formats. For example, the interviewer may ask in this manner: please tell me about yourself.
  • What did you learn from your degree?

Work History Questions:

You are asked questions about your previous job or work experience during mechanical engineering interview. If you have no previous experience then you are asked questions about your internship.

  • Why did you leave your last job?
  • What were your responsibilities at last job/internship?
  • What did you learn from your last job/internship?
  • What did you like or dislike about your previous job?
  • What problems have you encountered at work?
  • What experience do you have in this field?
  • What do co-workers say about you?
  • Are you applying for other jobs?
  • What have you been doing since your last job?
  • What have you done to improve your knowledge in the last year?
  • What can you contribute to this company?

Personality based questions:

Personality based common mechanical engineering interview questions play a great role in identifying the positive and negative aspects of your personality. Never lie about any of your strengths or weaknesses. Just answer honestly and you will be rewarded for sure.

  • Why do you think should we prefer you over other applicants?
  • What is so unique about you which differentiates you from others?
  • How you are going to help our company if we hire you?
  • What is your greatest weakness?
  • What is your greatest strength?
  • How would you describe yourself?
  • How do you handle stress and pressure?
  • Are you a team player?
  • What irritates you about co-workers?
  • What motivates you?
  • What do you find are the most difficult decisions to make?
  • What are you passionate about?
  • Why do you want this job?
  • What do you know about our company?
  • Do you have any questions for us?
  • Tell me about your proudest achievement.  
  • What is your greatest fear?
  • Do you prefer to work independently or on a team?
  • Give some examples of teamwork.
  • How do you evaluate success?
  • Describe a difficult work situation / project and how you overcame it.
  • Describe a time when your workload was heavy and how you handled it.

Questions about career goals:

Mechanical engineering interview questions about what your future goals are and where you want to be in future. This helps HR managers in identifying your aims and ambitions.

  • Where would you like to be in your career five years from now?
  • What are your career goals?
  • How do you plan to achieve these goals?
  • What kind of goals would you have in mind if you got this job?

Behavioral Interview Questions:

Behavioral interview questions are questions about real life experiences and situations and how you performed in those situations.

  • What was the last project you headed up, and what was its outcome?
  • Give me an example of a time that you felt you went above and beyond the call of duty at work.
  • Tell me a time when you need to persuade people.
  • Describe a time when you had to quickly make a decision
  • Can You Describe a Time When Your Work Was Criticized and How Did You Handle It?
  • How did you handle your most difficult professional experience?
  • How do you handle pressure?
  • Give me an example of a time you did something wrong. How did you handle it? 
  • What assignment was too difficult for you, and how did you resolve the issue? 
  • What's the most difficult decision you've made in the last two years and how did you come to that decision?
  • What is your greatest failure, and what did you learn from it? 
  • What irritates you about other people, and how do you deal with it?
  • If you found out your company was doing something against the law, like fraud, what would you do?

Technical Questions:

This is a bit difficult part of mechanical engineering interview questions. You are asked technical questions from any of the courses which you studied during four years of your bachelor’s degree in mechanical engineering. Don’t worry; no one asks very difficult questions. These are very common and concept-based questions.

  • How does a Francis turbine work?
  • Define first law of thermodynamics?
  • Define zeroth law of thermodynamics
  • What is difference between pressure and stress?
  • Does hollow shaft perform better than solid shaft of same dimensions?
  • With increasing temperature of intake air IC engine efficiency will increase or decrease?
  • Why is the ice maker placed at the top of the refrigerator?
  • How many types of suspensions used in automobiles?
  • What are common types of boilers in industry?
  • What is entropy?
  • How many types of gear boxes are there?
  • Why condenser is needed in steam power plant?
  • How does the cooling by air conditioning affect the relative humidity?
  • What is heat treatment?
  • What is viscosity?
  • What continuity equation tells us?
  • What is difference between power cycles and heat pump cycles?
  • What is efficiency of Carnot cycle?
  • What is efficiency of Rankine cycle?
  • How can you increase efficiency of a Ranking cycle?
  • What is an isobaric process?
  • What is an isothermal process?
  • How is a factor of safety used in design?
  • What are different types of gears?
  • Which one is more efficient– a four stroke engine or a two stroke? Why?
  • What is the applicability of mechanical engineering in the industry?
  • What is bending moment?
  • What is operating pressure?
  • What is Carnot engine?
  • Which has more efficiency: Diesel engine or Petrol engines?
  • Which is hard material Cast Iron or Mild Steel?
  • Explain Otto cycle.
  • What is annealing?
  • Is the boiler a closed system?
  • Define torque.
  • What is a Newtonian fluid?
  • What is gear ratio?
  • What is Hess Law?
  • Define Reynolds number.
  • What is the Device that converts sound energy into mechanical energy?
  • What is knocking in engines?
  • What is enthalpy?
  • What is the gas constant R for air?
  • Difference between Performance and Efficiency

If you are looking for answers to these mechanical engineering interview questions, please visit section of basic concepts of mechanical engineering and answers to common interview questions for mechanical engineers.


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