ELECTRONICS QUESTIONS

Posted Date: 07 Dec 2007 Resource Type: Articles/Knowledge Sharing Category: Jobs & Interviews

Posted By: Sudhindra Member Level: Silver
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Points: 3

# 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

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