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Carl Zeiss Graduate Trainee Interview Questions and Answers

Updated 27 Sep 2023

Carl Zeiss Graduate Trainee Interview Experiences

1 interview found

Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Campus Placement and was interviewed in Mar 2023. There were 4 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Coding Test 

Have to find number of points common to a rectangle and circle given few conditions

Round 3 - Technical 

(2 Questions)

  • Q1. Questions from resume
  • Q2. Sliding Window concepts in bit vector manipulation
  • Ans. 

    Sliding window concept involves moving a fixed-size window across a data structure to perform operations.

    • Sliding window technique is commonly used in array manipulation to solve problems efficiently.

    • It involves maintaining a window of fixed size while iterating through an array and updating the window based on certain conditions.

    • For example, in bit vector manipulation, sliding window can be used to efficiently count th...

  • Answered by AI
Round 4 - HR 

(2 Questions)

  • Q1. Three values a human should posses
  • Ans. 

    Compassion, integrity, and resilience are three values a human should possess.

    • Compassion: showing empathy and kindness towards others

    • Integrity: being honest and having strong moral principles

    • Resilience: the ability to bounce back from challenges and setbacks

  • Answered by AI
  • Q2. Family Background

Skills evaluated in this interview

Interview questions from similar companies

Interview Questionnaire 

4 Questions

  • Q1. What are your strengths and weaknesses?
  • Ans. 

    My strengths include adaptability, teamwork, and problem-solving. My weaknesses include public speaking and time management.

    • Strengths: adaptability, teamwork, problem-solving

    • Examples: I have successfully adapted to new roles and responsibilities in previous jobs, I work well in team environments and have contributed to successful team projects, I am able to identify and solve problems efficiently

    • Weaknesses: public spea...

  • Answered by AI
  • Q2. Are you interested in PhD. If no, why not?
  • Ans. 

    Yes, I am interested in pursuing a PhD.

    • I have a passion for research and a desire to contribute to the field

    • I believe a PhD will provide me with the necessary skills and knowledge to achieve my career goals

    • I am excited about the opportunity to work closely with experienced researchers and learn from them

    • I am willing to commit the time and effort required to complete a PhD program

  • Answered by AI
  • Q3. What is your biggest achievement?
  • Ans. 

    My biggest achievement is completing a challenging project ahead of schedule and exceeding expectations.

    • Successfully led a team of 10 to complete a complex project within 6 months

    • Implemented innovative solutions that resulted in a 20% increase in productivity

    • Received recognition from senior management for exceptional performance

    • Exceeded client expectations by delivering the project ahead of schedule

    • Improved team morale

  • Answered by AI
  • Q4. Your biggest hurdle ( related to some academic project ) and how did you overcome it?
  • Ans. 

    Overcoming the challenge of limited data availability for my research project.

    • Identified alternative sources of data

    • Collaborated with other researchers to gather more data

    • Used statistical techniques to make the most of the available data

  • Answered by AI

Interview Preparation Tips

Round: Test
Experience: Not mentioned before but later in the offer letter i found that CGPA must be more than 7.5. It was a technical test. Heat transfer, thermodynamics, stress, material strength, fluid mechanics were all asked. Time management and accuracy is essential.
Tips: Questions are not hard (average) but time is very less . So one must be quick and accurate. Don’t waste time on a single question if you are stuck.

Round: Technical Interview
Experience: Technical interview for short listed students based on their field (thermal or structures). I am from thermal background. All my questions were based on heat transfer and my project. Some of my friends were asked questions on fluid mechanics, turbo machinery. The questions which were asked to me were: 1. They gave me a plate and asked to discuss the heat transfer through it . Later they asked me about how to find the heat transfer coefficient (I answered: Nu=h*l/K). Then they asked me the significance of Nu. After this they asked me about Re, Pr numbers (some other numbers in fluid mechanics). They asked about Bi number, significance of Bi number , lumped body assumption and when this assumption can be taken. They also asked me to prove that. They asked me about CFD modelling, Finite Element Analysis as my projects were based on that. They are very particular about physical significance of terms and majority of my questions were on that.
Tips: Do not mug up concepts as they ask every question in detail. Your answer to the first question leads them to their next question. Even if you do not know the answer, try to work out from basic concepts. You might even get help from the interviewer if your approach is good. If you are completely unaware of the question, tell them frankly about that and they might ask you other question where you might be able to impress them rather than wasting time with something you don’t know the answer to.

Round: HR Interview
Experience: General HR questions for short listed candidates (Technical is a bit difficult, once you clear that be confident; HR is very simple)
Tips: Be confident and maintain eye contact. In the middle of the HR interview, he might ask you suddenly about your academic project. So, stay conscious.

Skill Tips: People with knowledge or experience in CFD modelling have an edge(especially for thermal and aerospace). People who are very good at stress analysis, strength and structures are preferred ( for Manufacturing specialization and aerospace)
Academic credentials (My CGPA 8.18) was not that great but i answered all the questions in the interview) are very important . All the questions are related to the basic concepts but student must be well aware of them.
Be thorough with the basics of Thermodynamics, heat transfer , fluid mechanics (for thermal and aerospace students) stress analysis, material strengths , design of machine elements (for manufacturing specialization). Don’t mug up the formulae , know about their physical significance. Most of the questions will be on basics, don’t waste ur time mugging big equations and derivations. The GATE book saved me a lot of my time. I went through it to get a basic idea of all the concepts and for each concept present there, I browsed the internet to get a further insight.
College Name: IIT KHARAGPUR

Interview Preparation Tips

Round: Test
Experience: CGPA of 8 is the minimum criteria.
10 aptitude questions: 15 minutes, no negative marking, level: medium/easy 
10 technical questions: 15 minutes, no negative marking, level: easy/medium (there were 2 sets: 1. structures; 2. aero/thermal; we had to choose one as per our interest) Basics should be clear, no formula was required to solve the technical paper.
Tips: Solve the technical paper related to your project field irrespective of the toughness of the paper.

Round: Technical Interview
Experience: Basic questions about:-
Project,
Subjects related to the project
Academic interests
50% of technical interview was based on projects.
Tips: The fundamentals should be strong.
You should have a clear idea of your project.

Skill Tips: Important subjects for structure are: FEM, Vibration, Mechanics etc.
College Name: IIT KHARAGPUR

Graduate Trainee Interview Questions & Answers

GE user image Aman Tripathi

posted on 29 Jan 2015

Interview Questionnaire 

12 Questions

  • Q1. Asked about Favourite subject.. and was asked about topic from it
  • Q2. Why CG is low?
  • Q3. What is endurance limit?
  • Ans. 

    Endurance limit is the maximum stress a material can withstand without failing under repeated loading.

    • Endurance limit is also known as fatigue limit.

    • It is determined through fatigue testing.

    • Materials with high endurance limits are preferred for applications involving repeated loading, such as aircraft components.

    • Endurance limit is affected by factors such as material composition, surface finish, and temperature.

    • If a ma...

  • Answered by AI
  • Q4. Fracture MEchanics ?
  • Q5. Your plans about Ph.D ?
  • Ans. 

    I plan to pursue a Ph.D. in my field of interest to gain in-depth knowledge and contribute to research.

    • I am interested in pursuing a Ph.D. in my field of study

    • I believe a Ph.D. will provide me with in-depth knowledge and research skills

    • I plan to contribute to research in my field through my Ph.D.

    • I am currently exploring potential Ph.D. programs and advisors

  • Answered by AI
  • Q6. Physical significance of endurance limit, nodes?
  • Ans. 

    Endurance limit is the maximum stress a material can withstand without failing, while nodes are points of zero displacement in a vibrating system.

    • Endurance limit is important in designing structures that will be subjected to cyclic loading, such as bridges and aircraft components.

    • Nodes are important in understanding the behavior of vibrating systems, such as musical instruments and machinery.

    • Endurance limit is affected...

  • Answered by AI
  • Q7. How to identify Nodes just by seeing a Machine?
  • Ans. 

    Nodes can be identified by checking their hostname or IP address.

    • Check the hostname or IP address of the machine

    • Compare it with the list of known nodes

    • Look for any specific configurations or software installed on the machine

    • Check the network topology to identify the node's position

    • Use tools like ping, traceroute, or nslookup to identify the node

  • Answered by AI
  • Q8. Physical significance of different energy theories?
  • Ans. 

    Different energy theories have different physical interpretations and applications.

    • Classical mechanics describes energy as a scalar quantity that is conserved in a closed system.

    • Thermodynamics defines energy as the ability to do work and is related to heat and temperature.

    • Quantum mechanics describes energy as discrete packets or quanta.

    • Relativity theory shows that energy and mass are equivalent and can be converted int...

  • Answered by AI
  • Q9. Tell me about Yourself ?
  • Ans. 

    I am a recent graduate with a degree in business administration and a passion for marketing.

    • I have experience in social media marketing through internships and extracurricular activities.

    • I am a quick learner and enjoy working in a team environment.

    • I am proficient in Microsoft Office and have experience with Adobe Creative Suite.

    • I am excited to start my career and contribute to a company's success.

  • Answered by AI
  • Q10. Information about Family background
  • Q11. Strength and weakness with example?
  • Ans. 

    My strength is adaptability and my weakness is public speaking.

    • Strength: I am able to quickly adjust to new situations and environments. For example, when I started a new job in a different industry, I was able to learn the necessary skills and adapt to the company culture within a few weeks.

    • Weakness: I struggle with public speaking and get nervous when presenting in front of large groups. For instance, during a class ...

  • Answered by AI
  • Q12. What was the reason of failure in the interview of earlier company?

Interview Preparation Tips

Round: Resume Shortlist
Tips: A decent effort is required in making CV... All technical projects and internships should be written effectively.
POR is not required.

Round: Test
Experience: Nice experience..
Tips: Knowledge of design matters
Duration: 60 min minutes

Round: Interview
Tips: Prepare Design subjects properly. Try to Know the Physical significance of every possible topic.
Keep Calm and if you a little bit answer try to frame it..interviewer will help u if u r on right track.
But don't stick to a question if u have no idea about that..

Round: Interview
Tips: If you are mentioning your strengths and weakness then be ready with at least one example.
Focus on your strength
Think and answer
Try to give real answer

General Tips: If you are in Mechanical System Design. You have a high chance. Prepare all design subjects.
Skills: Technical Knowledge
College Name: IIT KHARAGPUR
Motivation: Dream company for people who want to work in core engineering.
Edison Engineering Development programme is world recognized

Skills evaluated in this interview

Interview Preparation Tips

Round: Test
Experience: The test conducted had three parts (each part is approximately one hour long).
Part-1: Tested mathematical and analytical skills. The questions were quite simple and one hour is more than necessary for this part. 
Part-2: Tested technical skills. The questions in this part are administered depending on your department (AE, ME, EE). Each of the three eligible department gets the appropriate technical test. I can only attest to the aerospace test. The aerospace test was mainly about fluid mechanics and jet propulsion. The questions can be easily answered if you have a good grasp of your third year syllabus on jet propulsion. 
Part-3: It was related to HR. They asked about why I thought GE was special, why I think I am special, what my career goals were, etc.
Tips: DOs: Be relaxed and answer the test attentively. GE places enormous importance on your technical knowledge. Therefore, do ensure that you prepare for the test by brushing up on your third-year jet propulsion course. 
DONTs: There will be enough time to complete the test, don’t rush.

Round: Technical Interview
Experience: Technical interview may in itself consist of two rounds (like I had). The three eligible departments are further divided based on your field of interest. In aerospace, there were three sub divisions: dynamics, structures, and aerodynamics. Each sub division has an expert panel to interview you. I went to the dynamics panel (two rounds). In the first round, they asked me fundamental questions about dynamics in aerospace engineering: vibration of a beam, natural frequencies, mode shapes, etc. Some questions on fundamentals of jet propulsion: Brayton cycle, parts of jet engine, etc. In the second round, they asked me questions more directly related to GE’s core interests: jet engines. Rotordynamics is an important aspect of jet engine R&D. They asked me about the various modes of a jet engine rotor: bouncing, pitching, bending, etc. They asked me about the critical speeds at which each of these modes would get excited.
Tips: DOs: The usual: be confident, relaxed, speak slowly and clearly. Be friendly.

Round: HR Interview
Experience: The HR wants to know why you want to join GE. Don’t give cliched answers like GE is a big company, GE is great, etc. They already know that. They want to know why you feel GE is the right place for you. On the other hand, they also want to know why GE should take the trouble to hire you. Be confident and speak about your strengths and weaknesses, but don’t make it seem as though you are gloating. Having good communication skills will always help you in this round.
Tips: DOs: Speak freely, act like you are having a conversation and not a rigid interview. GE is a liberal company and they like people who are naturally confident and can speak comfortably. Smile. 
DONTs: Make it seem like your answers are rehearsed.

General Tips: GE needs to be convinced that you will not go on for higher studies. You have to convince them that you will work for them for a long period of time.
Strong technical basics, good academic profile, good and relevant projects are basic requirements. Publications are an added bonus. GE goes the extra length to make sure that they don’t hire students who will end up going abroad for higher studies. They literally grill you about your higher educational goals versus your professional goals and seek to know which is more important to you. All the best!
Skill Tips: Math ability is quite important but quantitative ability as required in CAT is not really necessary.
Programming: MATLAB, C, C++
Software: Simulink, ANSYS, FLUENT
College Name: IIT KHARAGPUR

I applied via Recruitment Consulltant and was interviewed before Aug 2021. There was 1 interview round.

Round 1 - HR 

(1 Question)

  • Q1. Canon printers hommany typs

Interview Preparation Tips

Interview preparation tips for other job seekers - Best printers good work super fast meshine bst working no heat

Interview Questionnaire 

2 Questions

  • Q1. What is BJT?
  • Ans. 

    BJT stands for Bipolar Junction Transistor, a type of transistor used in electronic circuits.

    • BJT is a three-layer semiconductor device consisting of a base, emitter, and collector.

    • It can be used as an amplifier or a switch in electronic circuits.

    • There are two types of BJT: NPN and PNP.

    • BJTs have high input impedance and low output impedance.

    • Examples of BJT applications include audio amplifiers, power supplies, and volta

  • Answered by AI
  • Q2. Bipolar junction transistor.
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
No response

I applied via Company Website and was interviewed in Nov 2023. There was 1 interview round.

Round 1 - Technical 

(4 Questions)

  • Q1. What is SPC, How we will calculate Cp and Cpk, Difference b/w sigma and Std dev, Which should be concentrate first whether Cp or Cpk
  • Ans. 

    SPC is Statistical Process Control used to monitor and control quality. Cp and Cpk measure process capability. Sigma is population standard deviation.

    • SPC is a statistical method used to monitor and control processes to ensure quality standards are met.

    • Cp and Cpk are indices used to measure process capability. Cp measures how well the process fits within the specification limits, while Cpk measures how centered the proc...

  • Answered by AI
  • Q2. Drawing details GD and T., What is basic dimensions, MMC, LMC, where it will be used
  • Q3. What is MSA, GAGE R and R, What is output in GRR, what will be be change based on result in GRR whether Instrument or Appraiser training, what NDC and how it will affect process
  • Ans. 

    MSA stands for Measurement System Analysis. GAGE R&R is a method to assess measurement system variation. NDC refers to the Number of Distinct Categories.

    • MSA is a statistical method used to evaluate the measurement system's ability to provide accurate and reliable data.

    • GAGE R&R is a specific MSA technique used to assess the variation contributed by the measurement system itself.

    • The output of GAGE R&R is typically expres...

  • Answered by AI
  • Q4. Six sigma process, Where Spc will come in Six sigma process
  • Ans. 

    SPC (Statistical Process Control) is a key tool in the Six Sigma process for monitoring and controlling process variation.

    • SPC is used to collect and analyze data in real-time to ensure that a process is stable and capable of meeting customer requirements.

    • It involves the use of control charts to monitor process performance and identify any special causes of variation.

    • SPC helps in identifying and addressing process issue...

  • Answered by AI
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. Describe virtual functions
  • Ans. 

    Virtual functions allow a function to be overridden in a derived class, enabling polymorphic behavior.

    • Virtual functions are declared in a base class with the 'virtual' keyword.

    • They are meant to be overridden in derived classes to provide specific implementations.

    • When a virtual function is called through a base class pointer or reference, the actual function to be executed is determined at runtime based on the object's ...

  • Answered by AI
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Selected Selected

I applied via Referral and was interviewed in May 2024. There were 3 interview rounds.

Round 1 - Coding Test 

120 minutes of interview, 3 dsa questions alongwith 20 technical and apti MCQ's

Round 2 - Technical 

(4 Questions)

  • Q1. Oops and its implementation alongwith polymorphism code
  • Ans. 

    Oops is a concept in object-oriented programming that allows for code reusability and flexibility. Polymorphism allows objects of different classes to be treated as objects of a common superclass.

    • Oops allows for encapsulation, inheritance, and polymorphism in programming.

    • Polymorphism allows for methods to be overridden in subclasses, providing flexibility in code.

    • Example: Oops can be implemented by creating classes for...

  • Answered by AI
  • Q2. Write matrix multiplication using multithreading
  • Ans. 

    Matrix multiplication using multithreading involves dividing the matrix into smaller parts and assigning each part to a separate thread for parallel computation.

    • Divide the matrices into smaller submatrices to be processed by different threads.

    • Assign each submatrix multiplication operation to a separate thread for parallel computation.

    • Combine the results from each thread to get the final result of the matrix multiplicat

  • Answered by AI
  • Q3. SDE puzzles from GFG
  • Q4. Projects and why you implemented this tech stack
Round 3 - HR 

(2 Questions)

  • Q1. Introduction and project related questions
  • Q2. Gen Ai related questions

Skills evaluated in this interview

Carl Zeiss Interview FAQs

How many rounds are there in Carl Zeiss Graduate Trainee interview?
Carl Zeiss interview process usually has 4 rounds. The most common rounds in the Carl Zeiss interview process are Resume Shortlist, Coding Test and Technical.
What are the top questions asked in Carl Zeiss Graduate Trainee interview?

Some of the top questions asked at the Carl Zeiss Graduate Trainee interview -

  1. Sliding Window concepts in bit vector manipulat...read more
  2. Three values a human should pos...read more

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Carl Zeiss Graduate Trainee Interview Process

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Interview experience

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Excellent
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