Siemens Energy Production Interview Questions and Answers

Q1. About virtual DOM and it's implementation
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Q2. Implementation of map, reduce, filter
Ans. 
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
Ans. 
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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20 min - 20 questions

Q1. Elctrical Engineering and MV-LV Switchgear
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Q1. Managerial and Operations
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Q1. Basic HR questions
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Q1. Interview with Stakeholder
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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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Q1. Use pscad and make drif tied wind power plan
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Using PSCAD to create a grid-tied wind power plant
• Create a new project in PSCAD

• Design the wind turbine system with appropriate parameters

• Connect the wind turbine system to the grid

• Simulate the system to analyze its performance

• Optimize the design for maximum efficiency
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Q2. How many years you will stay in this company?
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Q1. Technically questions
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Q1. Technical and commercial
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Q1. Salary negotiations and notice period
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