E-con Systems Interview Experience (On-Campus)

I attended E-con Systems drive on August 31, 2021. In this drive, they conduct three rounds.

First Round(31-08-2021): First-round was conducted in online mode. In that, there were 20 questions from Reasoning, 15 questions from C programming question, and 15 questions from Hardware (related to Electronics as I am from the ECE stream). Selected students got mail for the next round.

Second Round(25-09-2021):  For the second round, they invited us to their campus. In the company, 

• Aptitude – There were 7 aptitude questions on the topics of Time and Distance, Boats and Streams, Percentage, etc.,
• Then, Each of us was allocated by staff from the company. They gave some programming questions to solve,
  • Write a program to Reverse a String without using in-built functions.
  • Remove some mistyped characters in a string (for eg:  Input – “aniiiiiiiii”, Output – “ani”).
  • Write a program to Matrix Multiplication.
  • Write a program to find the smallest number in a singly Linked List.

            The program was written on paper, not in the system.

• Then, they started to give some puzzles. In between, they conducted Technical Round and an HR round. All the rounds were completed at 07:30 pm. 

Technical Round:

1. Difference between C Programming and Java
2. What is a pointer? Give an application.
3. Explain your Project.
4. Draw a block diagram of your project.
5. Tell some characteristics of the MQ5 sensor (as I used in my project).
6. Difference between StringBuilder vs StringBuffer.
7. What is a constructor?

HR Round:

1. Tell me about yourself.
2. Tell us achievements in your life. 
3. Tell us a challenge you have faced so far.
4. Tell us about your Internship experience.
5. Let’s assume you cleared this interview and at the same time you have been called by a company where you completed your internship. what will you do?
6. What are the products we are manufacturing? 

Third Round(26-09-2021): It was conducted in online mode through Microsoft Teams. In this round, they ask

1. Tell me about yourself.
2. What are your hobbies?
3. What is your favorite subject in your academics?
4. Why did you choose E-con systems?