Electronics Communications Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Electronics Communications Interview Questions

Questions Answers Views Company eMail

What is sampling theorem?

22 58133

What is impulse response?

10 21914

Explain the advantages and disadvantages of FIR filters compared to IIR counterparts.

Flextronics,

3 29651

What is CMRR? Explain briefly.

5 22294

What do you mean by half-duplex and full-duplex communication? Explain briefly.

9 22008

Which range of signals are used for terrestrial transmission?

2 16660

What is the need for modulation?

Analog Devices, BSNL, HAL, Hathway, ICT, Kekran Mekran, KPIT, Microsoft, Nokia, SCSVMV, SRK, TATA, TCS,

82 313244

Which type of modulation is used in TV transmission?

ACC, Cognizant, College School Exams Tests, LG, TCS, Videocon,

38 146954

Why we use vestigial side band (VSB-C3F) transmission for picture?

BPL,

16 69096

When transmitting digital signals is it necessary to transmit some harmonics in addition to fundamental frequency?

2 14253

For asynchronous transmission, is it necessary to supply some synchronizing pulses additionally or to supply or to supply start and stop bit?

IBM, Wipro,

2 12251

BPFSK is more efficient than BFSK in presence of noise. Why?

Accenture, Osia Electronics,

1 16386

What is meant by pre-emphasis and de-emphasis?

BEL, BSF,

24 113083

What do you mean by 3 dB cutoff frequency? Why is it 3 dB, not 1 dB?

College School Exams Tests, Infosys, Persistent, TCS, Wipro,

16 86607

What do you mean by ASCII, EBCDIC?

11 34087

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Un-Answered Questions { Electronics Communications }

How can a pseudo random noise code be usable?

1347

Can you help me to explain briefly the function of Op-Amp in circuit design.tq

1855

why qpsk is done for 45 135225315 not 0 90.270 360 degrees "degrees why "

2107

What are the different methods to turn on the thyristor?

1146

send me few previous years section engineer question papers?..

2045

Suppose in market 4n27 is not easily available so which opto isolator can I use at the place of this? What is 4n27

1013

Which is the most commonly used code for representing alphanumeric information?

1195

Explain what is difference between fixed-bias circuit & self-bias circuit?

1022

hello friends actually friends i took admission in us university i have not given toefl and gre is it possible for me to get visa actually once i gave a toefl test my score is 56 after that i m not taken again...please guys gave me some ideas what i do ..... i have already a i20 of us uni. my interview is on next month

2326

hi .. i have done my b.e in under electronics and communication engineering and now i have opted for computer engineering which has most of communication related subjects. still what should i answer, if i am been asked "why didnt yu opt for electrical engineering"

1703

Explain the difference between inductance and resistance?

955

Why doping is done in semiconductors?

1137

How the trx is assigned to e1 channel?

3146

How does data transfer takes place between memory and input output ports?

1125

whats the reason behind SF fault on siemens PLC.please explain in detail.

1588

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