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.

SO DO COMMENT AND FOLLOW ME FOR MORE EXPERIENCES AND VARIOUS INFORMATION.

DRDO INTERVIEW (JRF)

Tuesday, December 25, 2018

⏩DRDO SAG( Scientific Analysis Group)

Interview Date: 2nd Aug 2018. (JRF).

 

There were 5 scientists in the interview panel. Three gents and two ladies.

1.what is a stable system?


I answered," for every bounded input there is bounded output is a stable system."

2. Write the expression and draw a stable signal?


I wrote the expression and drawn the sine wave as a stable signal.

3.state the difference between causal system and causal signal.


For Causal system, there is no output for future input i.e. nonanticipative and causal signal is zero for t<0.

4.write truth table of Ex-or gate.


I drew the truth table.

5. Which are the Universal gates?


Nand and nor.

6. Draw not gate using nand and nor .


Drawn.....


7. Tell me the difference between latch and flip-flop? 


This is one of the favorite questions of DRDO scientist's. At that time I didn't know the answer so I confessed.

8.Draw inverter using Ex-or gate.


I drew.

I had given all the answers correct except one. I thought my selection is fixed but why they rejected I don't know.

1 comments:

Akash Deshmukh said...

Thank you brother for this post...it is very informative and helpful..

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