Lubrizol Corporation Analytics Manager Interview Questions and Answers

Q1. VLookup, Sumifs
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Q1. Difference between list and tuple
Ans. 
List is mutable, tuple is immutable in Python.
• List can be modified, tuple cannot be modified

• List uses square brackets [], tuple uses parentheses ()

• List is used for collections of items that may change, tuple is used for fixed collections
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It will be of Medium difficulty

It's is consists of easy questions

Q1. 25 mins on coding 15 mins on aptitude 10 mins on communication
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Q1. About kilns pregeater elevator and belt conveyors
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Q2. Slope percentage calculation of kiln Tan value in oil analysys Material and man power handling
Ans. 
The question covers slope percentage calculation of kiln, tan value in oil analysis, and material and manpower handling.
• For slope percentage calculation of kiln, we need to measure the height and length of the kiln and use the formula tan(theta) = height/length.

• Tan value in oil analysis is used to determine the acidity of the oil. It is calculated by dividing the acid number by the saponification number.

• Material and ma...read more
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Q1. How much Experience
Ans. 
I have 10 years of experience in software engineering, specializing in backend development and system architecture.
• 10 years of experience in software engineering

• Specialize in backend development and system architecture

• Worked on projects involving scalability and performance optimization
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Q2. Do you have any supervisor license
Ans. 
No, I do not have a supervisor license.
• I do not possess a supervisor license at the moment.

• I have not pursued obtaining a supervisor license in my career.

• My focus has been on technical expertise rather than supervisory roles.
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Q1. How to test of motors
Ans. 
Testing of motors involves various methods to ensure functionality and performance.
• Performing insulation resistance tests to check for any electrical faults

• Conducting load tests to measure the motor's performance under different conditions

• Checking for abnormal noise or vibrations during operation

• Inspecting the motor for any physical damage or wear

• Using thermography to detect overheating issues
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Q2. What is transformer safety relay's
Ans. 
Transformer safety relays are devices used to protect transformers from faults and overloads.
• Transformer safety relays monitor the electrical parameters of a transformer, such as current, voltage, and temperature.

• They can trip the transformer offline in case of a fault to prevent damage.

• Some common types of transformer safety relays include overcurrent relays, differential relays, and temperature relays.
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Q1. About the purchase field
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Q1. Technik question about purchase
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Q1. HR round asked persona question
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Q1. Azure, C#,Angular ,Aptitude
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Q1. Solid principles, OOPS ,Data analytics, virtualization
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Q1. Basic question related to field
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Q2. Previous job experience
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Q1. Family background
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