Ecogreen Energy Senior Engineer Mechanical Interview Questions and Answers

Q1. About yourself educational background family background
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Q1. Accounts and experience related questions
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Q1. Tell me about yourself, skills, previous positions
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Q2. No questions i have further
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Q1. Electrical Design Related
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Q1. Electrical power
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Q1. Write unit testing for adding two nimbers
Ans. 
Unit testing for adding two numbers
• Create a test case with two numbers and expected sum

• Call the function that adds two numbers

• Assert that the result matches the expected sum
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Q1. Explain challenge you faced in your last project
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Q1. Salary expectations
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Q1. Process synchronisation and threads.
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Linked list and sorting. Linux system side programming.

Q1. Thread synchronisation. Locking.
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Q1. Managerial discussion. Threading and watchdog related stuff.
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Tree, LinkedList, Array

Q1. Find depth of a tree
Ans. 
The depth of a tree is the length of the longest path from the root node to any leaf node.
• Depth of a tree can be found using depth-first search (DFS) algorithm.

• The depth of a tree is equal to the maximum depth of its children plus one.

• For example, in a binary tree, the depth of the tree is the maximum depth of the left and right subtrees plus one.
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Q2. Merge two sorted arrays
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Merge two sorted arrays into a single sorted array
• Create a new array to store the merged result

• Use two pointers to iterate through both arrays and compare elements

• Add the smaller element to the new array and move the pointer for that array
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Question was moderate. Good knowledge of dsa needed. CP not mandatory.

Q1. Question on oops principals, complexity analysis of programs, c++ concepts of classes, memory allocation etc.
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Q2. How much memory is allocated when a class is declared? How much when instance is created ? And so on...
Ans. 
Memory allocation for class and instance creation in Java
• Memory is allocated for class variables and methods when the class is loaded into memory

• Memory for instance variables is allocated when an instance of the class is created

• The amount of memory allocated depends on the data type and size of the variables

• Static variables are allocated memory only once, while instance variables are allocated memory for each instance

• M...read more
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Q1. What do you understand by distributed systems, multitasking multiprograming etc, overview idea of amazon working etc.
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Distributed systems involve multiple computers working together, multitasking allows for multiple tasks to be performed simultaneously, Amazon uses distributed systems for their online services.
• Distributed systems involve multiple computers working together to achieve a common goal

• Multitasking allows for multiple tasks to be performed simultaneously by a single computer

• Multiprogramming allows multiple programs to run o...read more
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Q1. Basic hr questions like relocation, aim etc.
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Q1. General discussion related skills,past experience related discussion
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Q2. Tell me about your self
Ans. 
I am a highly skilled and experienced Business Analyst with a strong background in data analysis and problem-solving.
• Experienced in conducting thorough market research and competitor analysis

• Proficient in identifying business needs and translating them into functional requirements

• Skilled in data modeling and creating visualizations to support decision-making

• Strong communication and collaboration skills, able to work ef...read more
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Q3. Work experience
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Q4. Tell me about what are skills you work
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I have a diverse set of skills as a Business Analyst.
• Strong analytical and problem-solving skills

• Excellent communication and interpersonal skills

• Proficient in data analysis and interpretation

• Experience in process improvement and optimization

• Familiarity with business intelligence tools and software

• Ability to gather and document requirements

• Knowledge of project management methodologies

• Experience in conducting market rese
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Q5. When you will join
Ans. 
I am available to join immediately.
• I can start as soon as possible.

• I am ready to join your team right away.

• I can begin my employment without delay.
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Manager and GM discussion job policy and work