ECE Interview Questions For Freshers

by admin on August 29, 2012

Electronics and Communication Engineering (ECE) is the discipline of engineering that deals with the study of hardware and circuits that contribute the designing of computer and other logical circuits. This field of engineering also deals with the increasing and maintaining the speed of electronic devices such as cell phones and so on. The micro-controller, microprocessor, embedded systems, robotics and others involve electronics; and the communication part deals with different communication devices such as radio communication, networking, data communication, voice communication and many others. It also involves CMOS VLSI, signal processing and microwave engineering.

Following are some sample interview questions on Electronics and Communication Engineering:

    1. What are active components and passive components?
    2. What is meant by race-around problem? How to rectify it?
    3. Define de-emphasis
    4. Define pre-emphasis
    5. What is 3DB cutoff frequency?
    6. What is meant by EBCDIC and ASCII
    7. Define biasing

    1. What is the main difference between amplitude modulation and angle modulation?
    2. What is meant by inter-symbol interference?
    3. Explain the difference between a diode rectifier and SCR
    4. Write the coding that can sort an array of integers
    5. Define sampling
    6. Define conductor
    7. What is communication? How many types of communications are there?

    1. How does a cell phone work?
    2. What is meant by communication?
    3. Define pass band
    4. Define sampling theorem
    5. Define a stop band
    6. Define cut-off frequency
    7. How many types of modulation techniques are there, and what are they?
    8. What are FDMA, CDMA and TDMA?
    9. Explain demodulation
    10. What is meant by Amplifier?
    11. What is electronics engineering?
    12. Define modulation. Where do you use it?
    13. Define an oscillator
    14. Define an integrated circuit
    15. What is RF? Explain.
    16. What are the different types of feedback?
    17. What is the difference between electrical and electronics?
    18. Why don’t we use 0-20 mA and why do we use 4-20 mA?
    19. Define Barkhausen criteria
    20. What is half duplex and full duplex?
    21. What is the difference between a cell and a mobile phone?
    22. What is meant by semi conductor?
    23. Define a resistor
    24. Define a repeater
    25. What is meant by integrated circuit?
    26. Is AM better or FM? And how?
    27. Define attenuation
    28. What is the difference between GSM and CDMA?
    29. Define a capacitor
    30. What are the modulation techniques? Name them.
    31. Define a base station
    32. What is meant by multiplexing?
    33. What is negative feedback and positive feedback
    34. Define a diode

  1. What is transponder and tranducer?
  2. How many satellites do we need to cover our planet (Earth)?
  3. Give examples for positive feedback and negative feedback
  4. Where do you use FM and AM?
  5. Define a crosstalk
  6. How does a mobile phone work?
  7. Define a rectifier
  8. Define op-amp?
  9. Define a feedback. And explain various types of feedback.
  10. Define Barkhausen criteria?
  11. Explain FM and AM
  12. Define a semi conductor?
  13. What is meant by resistor?
  14. What are the benefits of negative feedback over positive feedback.
  15. What is meant by attenuation?
  16. Explain the difference between a Verilog function and a Verilog task?

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