Electronics company [ Core Company ] Questions

Started by Kalyan, Mar 16, 2008, 10:51 PM

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Kalyan

Electronics company [ Core Company ] Questions

   * What is meant by 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?

    * What do you mean by an ideal voltage source?

    * What do you mean by 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 briefly.

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

    * Which range of signals are used for terrestrial transmission?

    * What is the 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?

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

    * What do you mean by ASCII, EBCDIC?

cuteharsha4


Electronics company [ Core Company ] Questions

   * What is meant by 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?

    * What do you mean by an ideal voltage source?

    * What do you mean by 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 briefly.

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

    * Which range of signals are used for terrestrial transmission?

    * What is the 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?

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

    * What do you mean by ASCII, EBCDIC?

P.Suganthi

Sir,iam suganthi from Annamalai University.Iam 2010 passed out student and i have an aggregate of 9.58(OGPA).Sir,please inform When will u recruit for ECE students?

siva sankaran.m

Dear Sir
  this siva sankaran .m i am student of BE EEE in fial year  i aply to a u r company .....

BALMIKI PAL

[font=courier] :agree 8) :educated :yes :educated 8)[/font]


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