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10+ Bharat Electronics Interview Questions and Answers

Updated 16 Oct 2024
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Q1. Rotate Array Problem Statement

The task is to rotate a given array with N elements to the left by K steps, where K is a non-negative integer.

Input:

The first line contains an integer N representing the size of...read more
Ans.

Rotate a given array to the left by K steps.

  • Create a new array to store the rotated elements.

  • Use modular arithmetic to handle cases where K is greater than the array size.

  • Shift elements to the left by K positions and fill in the remaining elements from the original array.

  • Return the rotated array.

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Q2. How will you solve a trans-shipment problem in excel solver software?

Ans.

Trans-shipment problem can be solved in Excel Solver by setting up a linear programming model.

  • Define decision variables for the amount of goods to be shipped between each pair of locations.

  • Set up constraints to ensure that the supply and demand at each location are met.

  • Add constraints to limit the amount of goods that can be shipped through intermediate locations.

  • Define the objective function to minimize the total cost of shipping.

  • Use Excel Solver to find the optimal solution...read more

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Q3. Geeks for geeks puzzles 1. How many parts are divided with one circle & 4 lines.

Ans.

The number of parts divided by one circle and four lines is 11.

  • Each line intersects with every other line and the circle.

  • Each intersection point creates a new part.

  • The circle itself also counts as a part.

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Q4. What is your area of interest?

Ans.

My area of interest is artificial intelligence and machine learning.

  • I am fascinated by the potential of AI and ML to revolutionize various industries.

  • I enjoy exploring the latest advancements in deep learning and natural language processing.

  • I am particularly interested in the ethical implications of AI and the need for responsible development.

  • Some of my favorite examples of AI in action include self-driving cars, virtual assistants, and image recognition technology.

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Q5. Explain transportation problem.

Ans.

Transportation problem is a linear programming problem that deals with minimizing the cost of transporting goods from sources to destinations.

  • It involves determining the optimal way to transport goods from sources to destinations

  • It considers factors such as cost, capacity, and demand

  • It can be solved using various methods such as the North-West Corner Method, Least Cost Method, and Vogel's Approximation Method

  • Example: A company needs to transport goods from three factories to ...read more

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Q6. Tell me about some joins in SQL.

Ans.

Joins in SQL are used to combine rows from two or more tables based on a related column between them.

  • Types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN.

  • INNER JOIN returns rows when there is at least one match in both tables.

  • LEFT JOIN returns all rows from the left table and the matched rows from the right table.

  • RIGHT JOIN returns all rows from the right table and the matched rows from the left table.

  • FULL JOIN returns rows when there is a match in one of t...read more

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Q7. What was your GRE score?

Ans.

I did not take the GRE exam.

  • I did not apply for a program that required GRE scores.

  • My focus was on gaining practical experience through internships and projects.

  • I have excelled in my academic and professional pursuits without a GRE score.

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Q8. How was CAT?

Ans.

CAT was challenging but I managed to do well.

  • CAT was a difficult exam but I prepared well for it.

  • I had to manage my time effectively during the exam.

  • I am confident that I did well in the exam.

  • The exam tested my analytical and problem-solving skills.

  • Overall, I am satisfied with my performance in CAT.

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Q9. Analytical approach towards daily tasks

Ans.

I approach daily tasks analytically by breaking them down into smaller steps and using data-driven decision making.

  • I start by clearly defining the task and its objectives.

  • I gather relevant data and information to understand the problem or task at hand.

  • I break down the task into smaller, manageable steps or sub-tasks.

  • I prioritize the steps based on their importance and urgency.

  • I use data analysis techniques to identify patterns, trends, and insights.

  • I make data-driven decision...read more

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Q10. Do you know about OOP?

Ans.

Yes, Object-Oriented Programming (OOP) is a programming paradigm based on the concept of objects, which can contain data and code.

  • OOP focuses on creating objects that interact with each other to solve problems

  • Key principles of OOP include encapsulation, inheritance, and polymorphism

  • Examples of OOP languages include Java, C++, and Python

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Q11. How to check for multicollinearity

Ans.

Multicollinearity can be checked using correlation matrix, variance inflation factor (VIF), and eigenvalues.

  • Calculate the correlation matrix between independent variables. High correlation coefficients indicate multicollinearity.

  • Calculate the VIF for each independent variable. VIF values above 10 indicate multicollinearity.

  • Check for multicollinearity using eigenvalues of the correlation matrix. If there are eigenvalues close to zero, it indicates multicollinearity.

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Q12. explain svm algorithm in you project

Ans.

SVM algorithm is a supervised machine learning model used for classification and regression tasks by finding the optimal hyperplane.

  • SVM stands for Support Vector Machine

  • It works by finding the hyperplane that best separates the classes in the feature space

  • It can handle both linear and non-linear data by using different kernels like linear, polynomial, and radial basis function

  • SVM aims to maximize the margin between the classes to improve generalization

  • It is commonly used in i...read more

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Q13. why you studied data science

Ans.

Passion for solving complex problems with data-driven insights

  • Fascination with the power of data to drive decision-making

  • Interest in leveraging statistical analysis and machine learning algorithms

  • Desire to make a positive impact through data-driven solutions

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Q14. difference between sql and no sql

Ans.

SQL is a traditional relational database management system, while NoSQL is a non-relational database system.

  • SQL is structured query language used for relational databases

  • NoSQL is a non-relational database system that can handle unstructured data

  • SQL databases are table-based, NoSQL databases are document, key-value, graph, or wide-column stores

  • SQL is good for complex queries and transactions, NoSQL is better for large amounts of data and scalability

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Q15. What is R2 score

Ans.

R2 score is a statistical measure that represents the proportion of the variance in the dependent variable that is predictable from the independent variable(s).

  • R2 score ranges from 0 to 1, with 1 indicating a perfect fit.

  • It is often used in regression analysis to evaluate the goodness of fit of a model.

  • R2 score can be interpreted as the percentage of the response variable variation that is explained by a linear model.

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Q16. explain 4 pillars of oops

Ans.

The 4 pillars of OOP are encapsulation, inheritance, polymorphism, and abstraction.

  • Encapsulation: Bundling data and methods that operate on the data into a single unit.

  • Inheritance: Ability of a class to inherit properties and behavior from another class.

  • Polymorphism: Ability to present the same interface for different data types.

  • Abstraction: Hiding the complex implementation details and showing only the necessary features.

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Interview Process at Bharat Electronics

based on 25 interviews
5 Interview rounds
Aptitude Test Round - 1
Aptitude Test Round - 2
HR Round - 1
HR Round - 2
Personal Interview1 Round
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