IOCL Interview Questions

                                                IOCL Interview Questions

Technical Interview Questions:

1. What is meant by derating factor?

2. How can we know cable size for a given current?

3. Explain the working principle of servomotor.

4. Why are servomotor and induction motor in different shape?

5. What is the difference between Induction motor and servo motor?

6. What are the advantages of speed control using thyristor?

7. What is electrical diversity factor in electrical installations?

8. How do you increase the winding resistance of a coil?

9. When the current through an inductor decreases, does the amount of energy stored in the electromagnetic field increase or decrease?

10. In a three-phase system, the voltages are separated by how many degrees?

11. In a three-phase system, when the loads are perfectly balanced, how much is the neutral current?

12. What is electrical diversity factor in electrical installations?

13. When the current through an inductor is cut in half, what happens to the amount of energy stored in the electromagnetic field?

14. What is the function of a transformer?

15. What happens when the current through the coil of an electromagnet reverses?

16. A coil of wire is placed in a changing magnetic field. If the number of turns in the coil is decreased, the voltage induced across the coil will increase or decrease?

17. What is the unit for reluctance?

18. What's the use of GNAC(Generator Neutral Accessory Compartment)

19. Why generator or any other system require Neutral Grounding and not Phase grounding?

20. What happens if any one of the phase is grounded?

HR Interview Questions:

1. Why did you apply for this particular job?

2. What is your greatest weakness?

3. Are you satisfied with your academic performance till date?

4. Tell me something about yourself.

5. Can you brief us about your hobbies and interests?