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 58124

What is impulse response?

10 21911

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

Flextronics,

3 29651

What is CMRR? Explain briefly.

5 22290

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

9 22001

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 313219

Which type of modulation is used in TV transmission?

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

38 146931

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

BPL,

16 69090

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

2 14251

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 12250

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 113076

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 86595

What do you mean by ASCII, EBCDIC?

11 34080

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Un-Answered Questions { Electronics Communications }

Why are the 2 input terminals of an op-amp are called as inverting & non-inverting terminals?

1070

What is the approximate cost of the smart pebbles eci-1(embedded corrosion instrument)?

1012

what are the Technical Specifications of D/240SC-T1

1035

What are the two basic modes in which the 555 timer operates?

1166

Require 7-8 points of difference between cdma ans gsm technology.

1962

I am working in a private software firm for past two years and now i want to switch to electronics company ... if they ask me ==>what I was doing for the past two years what would the appropriate answer to this ... please reply !

2035

If we have 450 mm height boiler drum level, so what is span & zero value for a dpt transmitter?

3365

What are laser diodes?

1053

Explain the various types of digital to analog converters?

1007

FlexiHopper and MetroHopper?

2067

How many TRXs are supported in Nokia Metrosite

2439

iam an electronics & comm engg student.i have applied for AAI can u please forward the old and related question papers to my id lali.ece63@gmail.com

1870

What is negative frequency?

1030

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

1192

What is a step-recovery diode and why is it so called ?

1095

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