Axtria
10+ Bharat Electronics Interview Questions and Answers
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
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.
Q2. How will you solve a trans-shipment problem in excel solver software?
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
Q3. Geeks for geeks puzzles 1. How many parts are divided with one circle & 4 lines.
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.
Q4. What is your area of interest?
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.
Q5. Explain transportation problem.
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
Q6. Tell me about some joins in SQL.
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
Q7. What was your GRE score?
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.
Q8. How was CAT?
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.
Q9. Analytical approach towards daily tasks
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
Q10. Do you know about OOP?
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
Q11. How to check for multicollinearity
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.
Q12. explain svm algorithm in you project
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
Q13. why you studied data science
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
Q14. difference between sql and no sql
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
Q15. What is R2 score
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.
Q16. explain 4 pillars of oops
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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