IN AN OSCILLOSCOPE TWO COUPLING IS THERE, THAT IS AC & DC COUPLING, WHERE DO WE USE THESE COUPLINGS ?
2 6664How will you send and receive data to a micro-processor? (One method is I/O mapped I/O which is the other one?)
1 5272What is 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? Explain an ideal voltage source? Explain 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 half-duplex and full-duplex communication? Which range of signals is used for terrestrial transmission? Why is there 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? Explain 3 dB cutoff frequency? Why is it 3 dB, not 1 dB? Explain ASCII, EBCDIC?
3 10433I have attended Scientist Entry Test on 7th Sep. Hereby I am submitting paper for Electronics and Communication branch…….. Hope it helps future aspirants……..
2229Post New DRDO Interview Questions
Draw a transistor level two input NAND gate. Explain its sizing (a) considering Vth (b) for equal rise and fall times
Is it difficult to learn linux?
Why you use groovy?
compare/different Waterfall and Rapid Application Development(RAD)
how can u integrate ejb and hibernate? How can u call hibernateDAO methods in session bean?
What is buffered ram?
I am having a 42KW 3 phase electrical heating furnace, heating element is 80/20 nichrome material, my connections is made in such a way that 2 star connection compromising 2 coils per phase so totally 12 coils, shall if i use it unbalanced star condition (instead of 2 group of 3 phase or 1 group of 3 phase, connecting 4 phases of 5 phases) what will be the consequences and is it acceptable?
What is jsp container?
How do I enable plugins on firefox?
Why pistons are usually dished at top ?
What are the raid levels in solaris?
Explain with examples any 2 features of OOPS.
How to create database statement in apache tajo?
Explain the difference between dynamic and var data types?
can anyone suggest good link for getting study material fordigital logic circuits?