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DRDO Interview Questions

Questions Answers Views Company eMail

what is the function of external oscillator in 8051 microcontroller

1 6144

IN AN OSCILLOSCOPE TWO COUPLING IS THERE, THAT IS AC & DC COUPLING, WHERE DO WE USE THESE COUPLINGS ?

2 6806

how write a addtion of two single dimensional array using of pointer in c language?

3 5920

What's the difference between looping 0s and 1s in K map?

5171

How will you send and receive data to a micro-processor? (One method is I/O mapped I/O which is the other one?)

1 5334

What is D-FF? What is the basic difference between Latches and Flip flops? What is a multiplexer? How can you convert an SR Flip-flop to a JK Flip-flop? How can you convert an JK Flip-flop to a D Flip-flop? What is Race-around problem? How can you rectify it? Which semiconductor device is used as a voltage regulator and why? Explain an ideal voltage source? Explain zener breakdown and avalanche breakdown? What are the different types of filters? What is the need of filtering ideal response of filters and actual response of filters? What is sampling theorem? What is impulse response? Explain the advantages and disadvantages of FIR filters compared to IIR counterparts. What is CMRR? Explain half-duplex and full-duplex communication? Which range of signals is used for terrestrial transmission? Why is there need for modulation? Which type of modulation is used in TV transmission? Why we use vestigial side band (VSB-C3F) transmission for picture? When transmitting digital signals is it necessary to transmit some harmonics in addition to fundamental frequency? For asynchronous transmission, is it necessary to supply some synchronizing pulses additionally or to supply or to supply start and stop bit? BPFSK is more efficient than BFSK in presence of noise. Why? What is meant by pre-emphasis and de-emphasis? Explain 3 dB cutoff frequency? Why is it 3 dB, not 1 dB? Explain ASCII, EBCDIC?

3 10579

Difference between shock and vibration isolator

2 12888

I have attended Scientist Entry Test on 7th Sep. Hereby I am submitting paper for Electronics and Communication branch…….. Hope it helps future aspirants……..

2271

WHAT ARE THE BELT HORMONICS IN AC MACHINE HOW TO REDUCE IT

2 5174

WHAT TYPE OF QUESTION ASK FOR POST SENIOR TECHNICAL ASSISTANT IN DRDO

8119

if u give d.c. supply to transformer primary then what happen.&why??????????????

4 9551

Who was the father of Chander Gupt Morya?

2 6598

If 5+3+2=151012, 5+4+5=202504, 7+2+5=143542 then 8+6+2= ?

21 36129

what is fili flop ?

3 7490

In simply words(not explain any formula )what do you mean by power factor.?

5 8012

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DRDO Interview Questions

Un-Answered Questions

What is the purpose of asp.net?

1050

hello dear this quadir saif and im doing bca .i want hotel management project in asp.net (with backend sql).on my id (quadir2011@rediffmail.com)

2515

How do you convert single row from source into three rows into target?

1210

Explain the 3 types of properties in c# with an example?

1137

What is jdbc thin client?

1015

What is a serializer django?

547

What is rownum and rowid?

1077

How to Clear the window in a console application?

1675

Can I set up a connection pool with multiple user IDs? The single ID we are forced to use causes problems when debugging the DBMS.

1006

What are spring jdbc templates used for?

498

For what purposes lasso tool can be used?

Define scheduling in OS.

1149

What is ms word powerpoint?

692

How can we create object repository in selenium?

1024

What is the difference between functional and nonfunctional testing?

1242