Here we have provided the best 50 important electrical engineering interview questions that can be asked by the interviewer in your technical job interview. Interview selection in only based on that how you answer and represent your answer to the interviewer. They measure your capabilities, sense of humor, patience and much more. During the electrical engineering interview questions and answers, mainly the question will be asked according to your course book but many companies or HR interviewer don’t ask the subject question instead of it, they keenly observed your presence of mind.
Tips For Engineering Interview Questions
Generally, the HR of the multinational companies always looks for such employs who have some extra qualities such as the person must be responsible for taking quick decisions. The persons might be asked for a quick review of any task and collective he/she have to submit the report.
While you are sitting in your interview be to keep yourself quite calm without hesitation and sounds good during the interview with a positive attitude. Note positive attitude is very much in getting selection in any electrical companies in India or the world. The company always looks for such employ who have a positive attitude towards their work and the goal of his/her life. Read the below top 50 important electrical engineering interview questions.
50 Electrical Engineering Interview Questions
Q1. Mention what are the different colors on wires indicates?
Q2. Compare JFET and MOSFET.
Q3. Explain thin film resistors and wire-wound resistors.
Q4. What happens when two positively charged material is placed together?
Q5. What is referred to the electron in the outer orbit?
Q6. Define the following terms:-
- Maximum demand
- Reserve generating capacity
- Availability (operational)
Q7. Define the term Capacitance and Inductance?
Q8. What is a differential amplifier? Also, explain CMRR.
Q9. Mention what are a different kind of cables used for transmissions?
Q10. Explain RLC circuit?
Q11. Explain how you decide what size of electrical wire do you need?
Q12. Mention what are the types of semi-conductors?
Q 13. State Maximum power transfer theorem.
Q14. Explain what is transistors comprised of?
Q15. Mention what is the role of a transistor in Circuit?
Q 16. State Thevenin’s Theorem.
Q17. Mention how NPN and PNP transistor works?
Q18. What will be current if the resistance total in series circuit doubles?
Q19. What happens if the series current double?
Q20. Name the types of motors used in vacuum cleaners, phonographic appliances, vending machines, refrigerators, rolling mills, lathes, power factor improvement, and cranes.
Q21. Explain what does a string of resistors in a series will do?
Q22. What is meant by reverse polarity and how it can be fixed?
Q23. Explain what rectifiers are and what are the types of rectifiers?
Q24. What is a slip in an induction motor?
Q25. Explain what is Zener diode?
Q26 Explain what is laser diodes?
Q27. Explain the application of storage batteries.
Q28. How can you relate power engineering with electrical engineering?
Q29. How does Zener phenomenon differ from Avalanche breakdown?
Q30. Explain forward resistance, static resistance and dynamic resistance of a PN junction diode.
Q31. What is knee point voltage?
Q32. Why did human body feel the electric shock?
Q33. What is the principal of motor?
Q34. What is power factor?
Q35. Should power factor be low or high?
Q36. What is the unit of magnetic flux density?
Q37. Why increase in current leads to increase in conductor temperature?
Q38. Difference between field rheostat and armature rheostat.
Q39. Why is field rheostat kept in minimum position?
Q40. Why is armature rheostat kept in maximum position?
Q41. Which oil can be used in transformer?
Q42. What is excitation in case of DC motor?
Q43. Why is the starting current high in DC motor?
Q44. What is meant by derating factor?
Q45. What is stiffness factor?
Q46. What is the dependency of stiffness on load angle?
Q47. What is essential to prove safe isolation of electrical circuit?
Q48. What is the ratio of true power to apparent power in an AC circuit?
Q49. What is power relay?
Q50. Differentiate between power relay and reverse power relay.