Ather Energy new Product Development Engineer Interview Questions and Answers

Q1. What is the use of static keyword
Ans. 
Static keyword is used in programming to declare variables, methods, or classes that belong to the class itself rather than instances of the class.
• Static variables are shared among all instances of a class

• Static methods can be called without creating an instance of the class

• Static classes cannot be instantiated and are used for grouping related methods or constants

• Static keyword is also used in C to declare functions t
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Q1. Brief about yourself ,sql
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Q2. Explain plan,table view and ddl method
Ans. 
Plan, table view, and DDL method are related to database management.
• Plan: Shows the execution plan of a SQL query, including the steps taken by the database to retrieve data.

• Table view: Displays the structure and data of a table in a database.

• DDL method: Stands for Data Definition Language, used to define and modify the structure of database objects.
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C programming, stack, python, computer basics

Q1. What's solid principle
Ans. 
SOLID principles are a set of five design principles in object-oriented programming to make software more maintainable, flexible, and scalable.
• Single Responsibility Principle (SRP) - a class should have only one reason to change

• Open/Closed Principle (OCP) - classes should be open for extension but closed for modification

• Liskov Substitution Principle (LSP) - objects of a superclass should be replaceable with objects of ...read more
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Q2. What's is factory patter
Ans. 
Factory pattern is a creational design pattern that provides an interface for creating objects in a superclass, but allows subclasses to alter the type of objects that will be created.
• Factory pattern is used to create objects without specifying the exact class of object that will be created.

• It promotes loose coupling by separating object creation from the client code.

• Common examples include Simple Factory, Factory Meth
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Some MCQ and coding questions were asked.

Linked list, dfs , bfs, array were asked

Q1. Repeated hr questions were asked.
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Q1. Objective type question of 50 marks
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20 marks objective questions for aptitude test

Q1. Question asked according to subject such as Engineering Drawing, Production Process etc.
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Q1. Electronics components ?
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Q2. Basic electronics questions
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