TotalEnergies Data Scientist Interview Questions and Answers

Q1. Questions on NLP frameworks, feature engineering, decision tree, dimensionality reduction techniques.
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Q1. What are different cloning methods
Ans. 
Different cloning methods include restriction enzyme cloning, PCR cloning, and Gibson assembly.
• Restriction enzyme cloning involves cutting DNA with restriction enzymes and ligating it into a vector.

• PCR cloning amplifies DNA fragments using polymerase chain reaction and inserts them into a vector.

• Gibson assembly is a method that joins DNA fragments with overlapping ends using a mix of DNA polymerase, exonuclease, and li
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Q2. Explain RT PCR and its application
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Q1. Cfd questions like forward difference scheme and backward difference scheme.
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Q2. In which direction the fluid flows in a vertical pipe when the pressures at two vertical locations are given.
Ans. 
The direction of fluid flow in a vertical pipe depends on the pressure difference between two vertical locations.
• Fluid flows from high pressure to low pressure.

• If the pressure at the lower location is higher than the pressure at the upper location, the fluid will flow downwards.

• If the pressure at the upper location is higher than the pressure at the lower location, the fluid will flow upwards.

• The magnitude of the press...read more
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Q1. About Work experience
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Q2. How do you handle a negative outcome?
Ans. 
I handle negative outcomes by analyzing the root cause and identifying potential solutions.
• I remain calm and objective to avoid making hasty decisions.

• I review the data and identify the root cause of the negative outcome.

• I brainstorm potential solutions and evaluate their feasibility.

• I implement the best solution and monitor its effectiveness.

• I use the experience as a learning opportunity to improve future outcomes.
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Q3. What are the factors that demotivates you in work?
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Q1. Questions based on Bernoullis principle.
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Q2. How to find if a point is inside or outside of a regular polygon?
Ans. 
To find if a point is inside or outside of a regular polygon, we can use the Ray Casting algorithm.
• Draw a line from the point to a point outside the polygon

• Count the number of times the line intersects with the polygon edges

• If the number of intersections is odd, the point is inside the polygon

• If the number of intersections is even, the point is outside the polygon
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Q3. Coding questions by the specialist in US.
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3 questions on various problems based on arrays and matrices.

Q1. Questions on NLP frameworks, feature engineering, decision tree, dimensionality reduction techniques.
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Q1. On biofuels, and basics in life science
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Q1. Basic data science and statistics interview questions along with their mathematical understanding.
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Q1. Data science questions with mathematical understanding
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Q1. STAR type questions
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Q1. Initial aptitude questions
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Q2. Tell me about yourself
Ans. Discuss your educational journey with focus on challenges and solutions of your learning journey. Discuss technical details of techniques handled with detailed discription about principles. Cross question would be expected on principles and troubleshooting. For example how proteins get separated under electric field in gel. If there is issue with separation how to solve it.
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Q1. Discuss about project you completed.
Ans. Discussed on project completed from problem statements, approach and final outcomes. How you overcome challenges? What are other alternative approaches.
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Q1. Why you want to join company?
Ans. Discuss about history and companies status in your field. What are the projects company working on and previous successful project. Future projects and their scope with your interest in contributing in it's advancement.
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Q2. What are your expectations and where you see yourself in next 5 years?
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Q1. Cfd questions like forward difference scheme and backward difference scheme.
Add your answer
Q2. In which direction the fluid flows in a vertical pipe when the pressures at two vertical locations are given.
Ans. 
The direction of fluid flow in a vertical pipe depends on the pressure difference between two vertical locations.
• Fluid flows from high pressure to low pressure.

• If the pressure at the lower location is higher than the pressure at the upper location, the fluid will flow downwards.

• If the pressure at the upper location is higher than the pressure at the lower location, the fluid will flow upwards.

• The magnitude of the press...read more
Answered by AI
Add your answer

Q1. About Work experience
Add your answer
Q2. How do you handle a negative outcome?
Ans. 
I handle negative outcomes by analyzing the root cause and identifying potential solutions.
• I remain calm and objective to avoid making hasty decisions.

• I review the data and identify the root cause of the negative outcome.

• I brainstorm potential solutions and evaluate their feasibility.

• I implement the best solution and monitor its effectiveness.

• I use the experience as a learning opportunity to improve future outcomes.
Answered by AI
Add your answer
Q3. What are the factors that demotivates you in work?
Add your answer

Q1. Questions based on Bernoullis principle.
Add your answer
Q2. How to find if a point is inside or outside of a regular polygon?
Ans. 
To find if a point is inside or outside of a regular polygon, we can use the Ray Casting algorithm.
• Draw a line from the point to a point outside the polygon

• Count the number of times the line intersects with the polygon edges

• If the number of intersections is odd, the point is inside the polygon

• If the number of intersections is even, the point is outside the polygon
Answered by AI
Add your answer
Q3. Coding questions by the specialist in US.
Add your answer

3 questions on various problems based on arrays and matrices.