Home » ECE VIVA Questions » 40 TOP MOST EDC VIVA Questions and Answers – ECE 40 TOP MOST EDC VIVA Questions and Answers – ECE Posted on June 11, 2015July 7, 2016 by engineer19 Comments EDC VIVA Questions and Answers :- 1. What is Electronic? 2. What is communication? 3. Different types of communications? Explain. 4. What is sampling? 5. State sampling theorem? 6. What is cut-off frequency? 7. What is pass band? 8. What is stop band? 9. Explain RF? 10. What is modulation? And where it is utilized? 11. What is demodulation? 12. Name the modulation techniques? 13. Explain AM and FM? 14. Where do we use AM and FM? 15. What is a base station? 16. How many satellites are required to cover the earth? 17. What is a repeater? 18. What is an Amplifier? 19. Example for negative feedback and positive feedback? 20. What is Oscillator? EDC VIVA Questions and Answers :- [MUST ASKING QUESTIONS IN VIVA & EXAM] 21. What is an Integrated Circuit? 22. What is crosstalk? 23. What is resistor? 25. What is inductor? 26. What is conductor? 27. What is a semi conductor? 28. What is diode? 29. What is transistor? 30. What is op-amp? 31. What is a feedback? 32. Advantages of negative feedback over positive feedback? 33. What is Barkhausen criteria? 34. What is CDMA, TDMA, FDMA? 35. explain different types of feedback? 36. What are the main divisions of power system? 37. What is Instrumentation Amplifier (IA) and what are all the advantages? 38. What is meant by impedance diagram? 39. What is the need for load flow study? 40. What is the need for base values?