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DRDO Interview Questions

Questions Answers Views Company eMail

what is the function of external oscillator in 8051 microcontroller

1 5963

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

2 6516

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

3 5661

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

5073

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 5179

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 10186

Difference between shock and vibration isolator

2 12588

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

2183

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

2 4970

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

8030

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

4 9231

Who was the father of Chander Gupt Morya?

2 6278

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

21 34866

what is fili flop ?

3 7191

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

5 7600

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DRDO Interview Questions

Un-Answered Questions

how to find out the name of the users who are currently working starting with the same characters in unix os

1986

Explain why the name ‘hadoop’?

643

Is null a binary search tree?

793

What is font color?

523

About Cyber Crime

1932

Have you ever had a problem with your peer? Tell us how you handled it.

1110

Explain different types of attributes of function module?

918

How access control policies are implemented in wcs?

801

Hello every one Sex with coworker or colleague is it good or bad ?

2346

How many moons do Neptune planet have?

112

WHAT IS AIR GAP VALUE IN MM FOR A 11KV BUSHING OF 11KV/440V DISTRIBUTION TRANSFORMER. AND AIR GAP VALUE OF 25 KV BUSHING OF AT TRANSFORMER OF 25 KV TRACTION. WHAT IS THE CALCULATION FOR THE AIR GAP PERMITTED FOR BUSHINGS AT DIFFERENT VOLTAGES.

3431

Is adobe photoshop a raster based software?

Explain what is nameserver? What does it do?

854

If selected as BDM what will be your first task

2003

Draw a SLD of DG distribution up to main LT panel?

9413