29-01-2013, 12:13 PM
ELECTRONIC INTERVIEW QUESTIONS
1ELECTRONIC INTERVIEW.docx (Size: 144.13 KB / Downloads: 53)
• 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?