Tata Motors Data Scientist Interview Questions and Answers

Q1. Introduction your self
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Q2. What are the language you learned
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I have learned multiple programming languages including Python, R, SQL, and Java.
• Python

• R

• SQL

• Java
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Q1. What is difference between lstm and rnn
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LSTM is a type of RNN that addresses the vanishing gradient problem by using memory cells.
• RNN stands for Recurrent Neural Network, a type of neural network that processes sequential data.

• LSTM stands for Long Short-Term Memory, a type of RNN that includes memory cells to retain information over long sequences.

• LSTM is designed to overcome the vanishing gradient problem, which occurs when training RNNs on long sequences.

• L...read more
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Q1. What are different evaluation matrix ?
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Evaluation matrices are used to assess the performance of models in data science.
• Confusion matrix: used to evaluate the performance of classification models.

• Precision, recall, and F1 score: measures for binary classification models.

• Mean squared error (MSE): evaluates the performance of regression models.

• R-squared: assesses the goodness of fit for regression models.

• Area under the ROC curve (AUC-ROC): evaluates the perfo...read more
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Q1. My job Responsibility and my job profile.
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Q2. Line balancing for me.
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Line balancing is the process of optimizing workstations in a production line to minimize idle time and maximize efficiency.
• It involves analyzing the production process and identifying bottlenecks

• Tasks are then rearranged to balance the workload across workstations

• The goal is to achieve a smooth and continuous flow of work

• Example: In a car assembly line, line balancing would involve ensuring that each workstation has a...read more
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Q3. Rejected and part analysis for everyone.
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Q4. Check sheet Filling.
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First off all, we ought to have some sortoff automobile and production knowledge because they will definitely check our technical skill secondly, listening skill and fluency plays significant factor

Q1. It was more like technical round moreover you have to be clear in purpose of your life based upon they are recruiting
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Q2. Define tqbm ? What is bom?
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TQBM stands for 'Tudo Que Bem' which means 'Everything is fine' in Portuguese. BOM means 'good' in Portuguese.
• TQBM is a common phrase used in Brazil to ask if everything is okay.

• BOM is often used as a response to TQBM to indicate that everything is good.

• Both TQBM and BOM are informal and commonly used in everyday conversations.

• Example: A friend asks 'TQBM?' and you respond 'BOM, e voce?' which means 'Everything is fine
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Question related to NPD

Q1. About GD&T symbol
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Q2. About Inspection tools
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Q3. How casting made
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Casting is the process of pouring molten metal into a mold to create a specific shape.
• Casting involves creating a mold, melting the metal, pouring the metal into the mold, and allowing it to cool and solidify.

• Different types of casting methods include sand casting, investment casting, die casting, and continuous casting.

• Casting is used in various industries such as automotive, aerospace, and jewelry making.
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The test was psychometric and aptitude. Interview was easy.

Q1. What are your views on Generative AI.
Ans. 
Generative AI is a powerful technology that can create new content based on existing data.
• Generative AI uses neural networks to generate new content such as images, text, and music.

• It has applications in various fields like art, music composition, and even creating realistic deepfake videos.

• Examples include OpenAI's GPT-3 for text generation and DeepDream for image generation.
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