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BARC Scientist Interview Questions and Answers

Updated 23 Jun 2022

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Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Campus Placement and was interviewed before Apr 2023. There was 1 interview round.

Round 1 - Technical 

(2 Questions)

  • Q1. What is stability?
  • Ans. 

    Stability refers to the ability of a system to return to a steady state after being disturbed.

    • Stability is crucial in various fields such as engineering, economics, and ecology.

    • In engineering, stability is important for structures to withstand external forces without collapsing.

    • In economics, stable markets are characterized by consistent prices and low volatility.

    • In ecology, stable ecosystems have balanced populations ...

  • Answered by AI
  • Q2. Nyquist criterion?

Interview Preparation Tips

Interview preparation tips for other job seekers - Gets basics right

Skills evaluated in this interview

Interview Preparation Tips

Round: Interview
Tips: Concentrate on basic Naval architecture and Ocean engineering topics and Fluid mechanicsPrepare well on your project as they tend to focus on DDP/BTPAdvantage if your project matches with DRDO interests

College Name: IIT Madras
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. What's your strength

Interview Preparation Tips

Interview preparation tips for other job seekers - an interview with 3 team members and a manager
questions about working experiences and case study in english and french
Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Aptitude Test 

Around 50 Data science questions in the MCQ format, it was conducted on hacker earth platform, wnough time was available to answer all of them

Round 2 - Technical 

(2 Questions)

  • Q1. 1.Machine learning questions based on different models, kernal functions, decision trees.
  • Q2. 2, They asked SQL queries and python outputs and basic definitions and differences

Interview Preparation Tips

Interview preparation tips for other job seekers - Be confident and happy during the interview and take your time for the answers

I applied via LinkedIn and was interviewed before Mar 2021. There were 4 interview rounds.

Round 1 - Coding Test 

DS and algorithm- Greedy algorithm/ dynamic programming- task scheduling problem.

Data science- classification problem- random forest (easy)

Round 2 - Case Study 

Explain coding data science notebook from coding round.
How do you find anomaly in time series? All methods.
Generic ML questions

Round 3 - One-on-one 

(2 Questions)

  • Q1. Biggest regret in life?
  • Ans. 

    Regret not pursuing a career in data science earlier

    • Regret not taking the opportunity to learn data science in college

    • Regret not exploring data science as a career option sooner

    • Regret not realizing the potential of data science in solving complex problems

    • Regret not joining data science communities and attending relevant conferences

    • Regret not acquiring necessary skills and knowledge earlier

  • Answered by AI
  • Q2. Tell me any startup idea.
  • Ans. 

    A startup idea for an AI-powered personal assistant for managing daily tasks and schedules.

    • Develop an AI algorithm to understand user preferences and habits

    • Integrate with various apps and devices to gather data

    • Provide personalized recommendations and reminders

    • Offer voice recognition and natural language processing capabilities

    • Enable seamless synchronization across multiple platforms

    • Implement advanced security measures

  • Answered by AI
Round 4 - HR 

(3 Questions)

  • Q1. What are your salary expectations?
  • Ans. 

    I would expect a competitive salary that reflects my experience and expertise in the field of data science.

    • I would consider factors such as my years of experience, the complexity of the role, and the industry standards.

    • I would also take into account the company's size, location, and benefits package.

    • I am open to discussing salary expectations based on the overall compensation package offered.

    • I believe in fair compensat...

  • Answered by AI
  • Q2. What are your strengths and weaknesses?
  • Ans. 

    My strengths include strong analytical skills, ability to work with large datasets, and effective communication. My weaknesses include perfectionism and occasional difficulty in prioritizing tasks.

    • Strength: Strong analytical skills

    • Strength: Ability to work with large datasets

    • Strength: Effective communication

    • Weakness: Perfectionism

    • Weakness: Occasional difficulty in prioritizing tasks

  • Answered by AI
  • Q3. Share details of your previous job.
  • Ans. 

    I worked as a Senior Data Scientist at XYZ Company.

    • Led a team of data scientists in developing machine learning models for predictive analytics.

    • Collaborated with cross-functional teams to identify business problems and provide data-driven solutions.

    • Implemented data preprocessing techniques to clean and transform raw data into usable formats.

    • Utilized statistical analysis and hypothesis testing to derive insights and mak...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - ML easy

Coding - medium leet code

I was interviewed in May 2021.

Interview Questionnaire 

1 Question

  • Q1. What is the minimum temperature of any substance that we could reach and use it for practical purposes?
  • Ans. 

    The minimum temperature of any substance that we could reach and use for practical purposes is absolute zero, which is -273.15 degrees Celsius or 0 Kelvin.

    • The minimum temperature is known as absolute zero.

    • It is the lowest possible temperature that can be reached.

    • At absolute zero, all molecular motion ceases.

    • Practical applications include cryogenics and superconductivity.

    • Examples of practical uses are in medical imaging

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - Interview is purely technical and rigorous. Leave no stone unturned in your fav subjects.

Interview Preparation Tips

Round: Test
Experience: After filling a bio-data form mentioning the details regarding projects/papers published and BTP/DDP, shortlisting is done based on the following points:CG cut-off 6.75. Shortlisted after comparing the test scores of all the students.
Objective type test is conducted on the basis of aptitude and core questions.
Duration: 90 minutes

Round: Technical Interview
Experience: It was a Skype interview with a panel of 8 and questions were asked about core engineering,internship and projects.Additional questions were asked regarding the branch one is interested in.Questions were asked about the work DRDO has done and is doing and about BTP.

General Tips: One need to be thorough with core subjects,at least the one you are interested in.Be confident while answering questions and avoid talking about something of which you have no knowledge.
College Name: IIT MADRAS

Interview Questionnaire 

12 Questions

  • Q1. Questions about fluid dynamics
  • Q2. Wind tunnels, materials & their properties
  • Ans. 

    Wind tunnels are used to study the effects of air on objects. Materials and their properties play a crucial role in wind tunnel experiments.

    • Wind tunnels are used to simulate the flow of air around objects, allowing scientists to study aerodynamics.

    • Different materials have different properties that can affect the results of wind tunnel experiments.

    • Materials with low drag coefficients, such as smooth metals, are often us...

  • Answered by AI
  • Q3. Solid Mechanics
  • Q4. Internship-based
  • Q5. Modes of vibrations of beans
  • Ans. 

    Modes of vibrations of beans refer to the different ways in which beans can oscillate or vibrate.

    • Beans can vibrate in different modes depending on their shape, size, and material properties.

    • Some common modes of vibrations in beans include bending, twisting, and radial vibrations.

    • The mode of vibration affects the frequency, amplitude, and pattern of the bean's oscillation.

    • Understanding the modes of vibrations in beans c...

  • Answered by AI
  • Q6. Friction + Lubrication
  • Q7. 4-R Linkages
  • Q8. Heat transfer, control systems
  • Q9. MOS, design of machine elements
  • Q10. Flight mechanics and structures
  • Q11. Semiconductors & digital electronics
  • Q12. Types of counters, to design a divide by 5 counters
  • Ans. 

    There are several types of counters that can be used to design a divide by 5 counter.

    • Ripple counter

    • Synchronous counter

    • Johnson counter

    • Ring counter

  • Answered by AI

Interview Preparation Tips

Round: Technical Interview
Experience: 30 minutes duration.

General Tips: Good command over
1. MOS & Fluid dynamics, Dynamics & Vibrations, Heat & Mass transfer, Theory of
mechanisms, propulsion1,2,Aero-D,flight mechanical. Structures 1,2, ME 359-IC
engine
2. ME-453-automation & control
3. ME-341-Heat & Mass transfer
4. ME-351-Theory of machines & mechanisms, Vibration & control, fluid dynamics &
turbo machinery
5. Don’t try to answer those question which you are not sure of because panel members
are very expert.
Skills: Automation & control, Mass transfer, Theory of machines & mechanisms, fluid dynamics, Heat transfer, turbo machinery, Vibration & control
College Name: IIT KANPUR

Interview Preparation Tips

Round: Interview
Tips: Concentrate on basic Naval architecture and Ocean engineering topics and Fluid mechanicsPrepare well on your project as they tend to focus on DDP/BTPAdvantage if your project matches with DRDO interests

College Name: IIT Madras

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BARC Scientist Salary
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