NTPC Interview Questions....

These are some of the NTPC Interview questions which were asked to my friends...

1)Which is more harmful? AC or DC? Why?

2)How much will the frequency vary in a power system?

3)Human Body withstanding voltage?

4)How will you step up your DC voltage?

5)One question about your project?

6)What is Potier triangle?

7)Draw the inverted V and V curves?

8)What is Ferranti Effect?

9)What is slip?

10)What type of winding is used in motors? Star or Delta? Why?

11)What are the different parts of the Transformers?

12)Draw the equivalent circuit of Transformers?

13)Draw the Transformer?

14)Tell about Salient and Non-Salient poles? Where both are used?

15)If there is a frequency drop in a Power System how will how rectify it?

Jindal Steel & Power Interview Questions

These are some of the questions which were asked in Jindal Steel and Power Ltd.
1)What is rotating magnetic field?

2)How does the lightening arrestor work?

3)What is the bus fault voltage in a power system?

4)What is the maximum efficiency of a transformer?

5)Draw the V-curves?

6)I have a voltage source V and three Capacitors. How is it possible to get 3V?

7)Tell about Bucholz Relay?