BEFORE GIVING ANY PSU INTERVIEW I SEARCHED A LOT FOR THE QUESTIONS ASKED BUT I ALWAYS GOT INSUFFICIENT QUESTIONS. SO THIS IS MY ATTEMPT TO BRING YOU PERSONALLY EXPERIENCED QUESTIONS. I ALWAYS UPDATE IT BY GATHERING INFORMATION FROM FRIENDS TOO.

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DRDO INTERVIEW (JRF)

Thursday, December 27, 2018

⏩DRDO DEBEL(Defence Bioengineering & Electrochemical Laboratory), Bangalore.

Interview Date: 20th Aug 2018. (JRF)


   There were around 75 candidates applied for the JRF post and vacancies were only one.
   So they took one exam in which 30 questions asked for half an hour. Most of the questions were previous year gate itself and some numerical aptitude questions but they were also from previous year gate. I was familiar with the questions hence it was not a big deal to clear the exam.
   One hour gap was given to declare the result. I was sure, my name will be on the list. They selected 15 candidates in which 12 were MTECH qualified and three, considering me were BTECH+GATE. Why I'm mentioning it you will come to know later. The selected candidates asked to sit in auditorium hall there we got a chance to interact with each other.
   One of BTECH+GATE had selected for the interview of ISRO scientist but got rejected in an interview. I remember his name, Peddy Reddy. Another one has GATE rank of around 2700, his surname was Malhotra.
   I was second last according to the list, I would like to mention that the list for the interview is not according to the marks obtained in the test but according to the application number.

1. What is your aim?

I said," I want a govt job.

2. Why govt only?

Because there is no fear of getting fired i.e. job security.
  The chief of interviewer laughed and said to me," who said you that, govt is also changing policies now. Remove that thought from your mind". One type of humerous atmosphere created...I replied him with a smile, "okay, sir I will".

3. Do you know diode?

Observe how the sequence of questions asked. I said, "yes".

4. What is peak inverse voltage of the diode?

When diode is reverse biased, maximum value of reverse voltage occurs at the peak of input cycle.

5. The condition to convert Fourier Transform to Laplace transform.

I answered," when sigma equal to zero."

6. Application of Fourier Transform?

I said, "to convert time domain to frequency domain and vice versa."

7. What is the purpose of doing transform?

I answered," to analyze the signal well."

8. Explain Wavelet transform.

I confessed that I don't know, again he asked some more unknown transforms, my answers were no for them.
I said, "I know only Fourier, Laplace and z transforms.

9. Tell me what are universal gates and why they are called universal?

This is also a favorite question of DRDO scientists.i answered.it is a simple question.

10. What is counter and it's application?

I said it is a sequential ckt made up of flipflops and used to count the pulses.

11. Any other applications?

"Frequency division."

12. Do you know C language?

"Yes".

13. Write a program to add two numbers.

I wrote.

14. Have you studied communication system and what in that?

"Yes, satellite communication,radar...
But I'm not comfortable with the communication system.

15. What is ECG?

"Electrocardiogram".

16. What is difference between graph and gram ?

"I know only graph that is graphical representation". 
I don't know this was the correct answer for the question but they stopped here.

17. Can you shift yourself from Maharashtra to Banglore?

The pleasant moment,that gives hope to be selected."yes".


But afterwards i came to know that last candidate Malhotra and peddy reddy got selected. 





1 comments:

Unknown said...

could you please tell me that, what should i tell if they ask " briefly tell about yourself ?"

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