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Electronics Communications Interview Questions
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what is the types of transmission


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?



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write power supply application, manufacturing, advantages, cost


What is the difference between Analog circuit and Digital circuit?

Sail, TCS,

2 9728

does RS-485 cables come with armour?


.We want to compare the performance of a single threaded disk server with a multithreaded 1. Suppose the server takes 25 ms to receive a request for work from client, dispatch the request for processing and actual data request processing when reqd. Data is in main memory. If the reqd. Data is not in the main memory a real disk operation is needed and an additional 75 ms are reqd. On the average. On the average 25% of the clients requests access the disk. During the disk I/O period the thread waits. Assume that there is no other process in system when the server is running. How many requests can the server handle per second if its a)single threaded b)multithreaded


A thread has to access the address space of all other threads in the same process and can therefore mess up the stacks of other threads. Why is this not a protection problem? Could the same be allowed to occur for processes, e.g. one process writing data into the stack of other.



hi, i am anjali. i m doing 3rd EIE in one of the top colleges affliated to anna university. i m really confused between whether to do ME or goto job , gain sum experience and then do MBA.all say that if v do ME , lecturer field is the only job oppurtunity that job oppurtunities in core companies for girls are very difficuilt and they r not well paid too..i dont want to go in teaching field. in my college too for campus only few core companies are coming and they too recruit only guys. but top software companies are comning for campus . other set say me to get placed in a software company in campus, gain experience & do MBA. pls help me by giving ur suggestions friends.


difference b/w electronics and electrica ?

3 3319

The whole thing moves/ (B) around the concept of building a small dynamic/(C) organisation into a larger one./(D) No error.

Accenture, AMCAT, Aspiring Minds, CTS, HCL, Wipro,

3 24995

what is the electronics

1 2596

howw can we transmit the call of gsm?


what is the different between gsm and cdma?



what questions are asked in this round for ece


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Un-Answered Questions { Electronics Communications }

How many such pairs of digits are there in the word " strive" each of which has as many letters between them in the word as they are in english alphabets?


Define what is the effect of temperature on the reverse current of a p-n junction?


i want model questions which will be asked in hindustan aeronautics online test for the post of managenent trainee


What is the use of all pass filter?


Explain in details how you would react to an unexpected incident when your supervisor or manager is not around to give instructions?


What are the basic logic gates?


why we use low and high radio band in m/w link at both end


What are level triggered flip flop?


how a log ratio amplifier works?


I have recieved an interview call from HECL that is Heavy Engineering Corporation Ltd, Ranchi , Jharkhand. Can you please provide me some Electronics and Communication questions for preparation as early as possible since I am left with just one week.


Define the signaling massage in telecomincation


why are u hiring electronics


Define timer.


What is the difference between active and passive filters?


A description of the fundamental elements that are required to make a digibox. I assume that they all record nowadays?