Accord Synergy O&M Engineer Interview Questions and Answers

Q1. What is polymorphism
Ans. 
Polymorphism is the ability of a function or method to behave differently based on the object it is acting upon.
• Polymorphism allows objects of different classes to be treated as objects of a common superclass.

• It enables a single interface to be used for different data types or classes.

• Examples include method overloading and method overriding in object-oriented programming.
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Q2. Find missing number from nth number array.
Ans. 
Find missing number from nth number array.
• Iterate through the array and calculate the sum of all numbers

• Calculate the sum of numbers from 1 to n using the formula n*(n+1)/2

• Subtract the sum of array from the sum of numbers from 1 to n to find the missing number
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Q3. Explain inheritance and it types
Ans. 
Inheritance is a concept in object-oriented programming where a class inherits properties and behaviors from another class.
• Inheritance allows a class to reuse code from another class.

• Types of inheritance include single inheritance, where a class inherits from only one parent class, and multiple inheritance, where a class inherits from multiple parent classes.

• Example: Class B inherits from Class A, so Class B can access
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Q4. Find 2nd max elements from aaray
Ans. 
Find 2nd max element from array of strings
• Sort the array in descending order

• Skip the first element (max element)

• Return the second element
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Hacker rank, 3 questions with 1 hour duration

Q1. Stack parenthesis matching
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Q2. Linked List reversal
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Q1. Operating System basics
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Q2. Behavorial questions
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Q3. Networking Basics
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Q1. They asked technical question related to .NEt and angular , easy and simple interview
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Q1. About yourself?
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Q2. Power sector experience?
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Q1. Inheritance, Contructord, Polymorphism etc
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Q1. Exception Handing, Datatypes, Unix, Sql
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App based Interview which ask about previous experience and some random technical questions like battery connection and SMPS

Q1. DG Operations Management maintenance, SMPS , Battery bank,VRLA batteries, Stress management.
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Q1. Technical questions and confidence to be checked
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Q1. Privious salary
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Q2. Will you able to work in field
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Basic java mcq, Java Hibernate Spring MVC framework questions