Tata Power DPT.Manager Interview Questions and Answers

Q1. About virtual DOM and it's implementation
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Q2. Implementation of map, reduce, filter
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Map, reduce, and filter are higher-order functions commonly used in functional programming to manipulate arrays.
• Map: Transforms each element in an array based on a provided function.

• Reduce: Reduces an array to a single value by applying a function to each element.

• Filter: Creates a new array with elements that pass a certain condition.
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Q3. Closures and their implementation
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Closures are functions that have access to variables from their containing scope.
• Closures can access variables from their outer function even after the outer function has finished executing.

• Closures can be used to create private variables in JavaScript.

• Closures are commonly used in event handlers and callbacks.
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Q4. Redux sagas and their practical use cases
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Redux sagas are middleware libraries for managing side effects in Redux applications.
• Redux sagas are used to handle asynchronous actions in Redux, such as API calls or timers.

• They are implemented as generator functions that can pause and resume execution.

• Redux sagas provide a more structured and testable approach to handling side effects compared to traditional Redux middleware like Thunk.

• Common use cases for redux sag...read more
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Q5. Basic javascript output questions
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Q1. Write a function to find the sum of the array using reduce.
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Function to find sum of array using reduce
• Use the reduce method to iterate through the array and accumulate the sum

• Convert array elements to numbers before summing them up

• Handle edge cases like empty array or non-numeric elements

• Example: const array = ['1', '2', '3']; const sum = array.reduce((acc, curr) => acc + Number(curr), 0);
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Q2. About form validation techniques
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Q3. UseCallback and useMemo
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Q1. What do you know about Hitachi energy
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Hitachi Energy is a global technology leader that provides innovative and sustainable energy solutions.
• Hitachi Energy offers a wide range of products and services for the energy sector, including grid integration, digital solutions, and consulting services.

• The company focuses on creating a more sustainable energy future through its advanced technologies and expertise.

• Hitachi Energy is known for its commitment to innova...read more
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Q2. Why do you want to join only Hitachi energy.
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Q1. Dol circuit, switch gear knowledge
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Q2. , why are you leaving previous organisation?
Ans. 
Seeking new challenges and opportunities for growth.
• Desire for new challenges and opportunities

• Looking to expand skill set

• Seeking career advancement

• Company restructuring or downsizing

• Relocation to a new area
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Coding with UML diagrams

Q1. C++ Question related to pointers
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Q2. C++ problem solving
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Q1. C++ problem solving.
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Q1. Managerial round with some problem solving.
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Q1. Salary discussion.
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Q2. Joining date confirmation.
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Q1. How do you validate a tool/equipment for the production line?
Ans. 
Validating a tool/equipment for production line involves testing its functionality, reliability, and safety.
• Performing functional tests to ensure the tool/equipment operates as intended

• Conducting reliability tests to assess the tool/equipment's durability and performance over time

• Ensuring the tool/equipment meets safety standards and regulations

• Collaborating with production line operators to gather feedback on usabilit...read more
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Q2. Experience in end to end lifecycle management
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Experience managing all stages of product development from concept to production
• Experience in concept development and ideation

• Knowledge of prototyping and testing

• Ability to work with cross-functional teams

• Experience in design for manufacturability

• Understanding of quality control and regulatory requirements

• Examples: Leading a team to develop a new product from initial concept to mass production

• Collaborating with supplie...read more
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Q1. COLOUR CODE OF BOILER TUBES
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Boiler tubes are color coded for easy identification and maintenance purposes.
• Boiler tubes are typically color coded based on their function or material composition.

• Common color codes include blue for feedwater tubes, red for steam tubes, and green for superheater tubes.

• Color coding helps maintenance personnel quickly identify and troubleshoot issues with specific tubes.

• Color coding also aids in proper installation and...read more
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Q1. EXPECTATIONS FROM NTPC
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NTPC expects employees to demonstrate strong leadership, technical skills, commitment to safety, and dedication to achieving company goals.
• Demonstrate strong leadership skills in managing teams and projects

• Possess technical expertise relevant to the role

• Prioritize safety in all operations and decision-making

• Show dedication to achieving NTPC's goals and objectives
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Q1. What is the difference between tensioning and torturing
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Tensioning is the process of applying force to stretch or tighten something, while torturing involves inflicting pain or suffering on someone or something.
• Tensioning is a mechanical process used to tighten or stretch materials, such as cables or belts.

• Torturing involves causing physical or mental pain to a person or animal.

• Tensioning is a common practice in engineering and construction to ensure stability and strength.

• ...read more
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Q1. How you are seeing position in nex 5 years
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Q1. How many type of equipment used in your company in mines operation.
Ans. 
There are various types of equipment used in mines operations, including heavy machinery, vehicles, drilling equipment, safety gear, and communication devices.
• Heavy machinery such as excavators, dump trucks, and bulldozers are used for digging and transporting materials.

• Drilling equipment like drills and blasting tools are used for extracting minerals from the ground.

• Safety gear such as helmets, gloves, and safety harn...read more
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Q2. What is the tyre sixe of CAT772G Dumper.
Ans. 
The tyre size of CAT772G Dumper is 18.00-33.
• The tyre size of CAT772G Dumper is 18.00-33.

• The tyre size is important for ensuring proper performance and safety of the vehicle.

• Having the correct tyre size helps in maintaining stability and traction on various terrains.
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