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DRDO Interview Questions
Questions Answers Views Company eMail

what is the function of external oscillator in 8051 microcontroller

 1 5235

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

 2 5598

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

 3 4562

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

 4668

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 4496

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 8887

Difference between shock and vibration isolator

 2 11520

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

 1751

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

 2 4149

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

 7650

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

 4 7998

Who was the father of Chander Gupt Morya?

 2 4978

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

 21 30156

what is fili flop ?

 3 6134

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

 5 6195

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DRDO Interview Questions


Un-Answered Questions

How many alpha- numeric numbers are there in total in a PAN Card?

605

Why golang is fast?

1

How to fetch last inserted id, fetch all record and fetch a single record?

136

Give an example where logs help in openstack security?

35

how would you check that a given index is consistent and has no corruption? If corruption occurred on a database what would your process be?

81




What is retrovirus?

614

why Y CONNECTION IS BETTER INTERMS OF EFFICIENCY AND P.F FOR A LAOD LESS THAN 40% AND WHY AFTER DELTA IS BETTER FOR > 40%

1475

Which kind of agent architecture should an agent an use? a) Relaxed b) Logic c) Relational d) All of the mentioned

1068

How can you determine the space left in a file system?

343

What is the difference between virtual and override in c#?

467

How many cells (nuclei) per ml pellet?

1302

What are the different storage options with Azure?

293

Explain about collection interface in java?

536

How would you transform and cleanse data in SAP Business Objects Data Integrator before loading it into the target system?

1

How do you implement thread synchronization in c#?

454