Electrical Engineering Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

in alternator permanent magnet generator is also connected on the alternator shaft,then y that PMG voltage is very low as compared to alternator?

1 3113

Difference between transmission line and cable?when ever a large water channel has to crossed it is easier to use cable then transmission line why?

1 3083

why 2 phase is used in argc furnace? why 6 phase is used in converting machinery?

1 2970

what is tpmo switch

3 30385

What are the different auxiliary protections of a transformer?

CESC,

1 3358

The neutral&earth voltage is 0v.But we were connected the lighting load at the time ballast was failed.why?

1 3450

Why transformer use to generator neutral earthing purpose ?

1 4433

There is two transformers of 2MVA & 3MVA, which transformer is located at the sending end & which is at receiving end. why?

3 6349

Which has more losses, AC or DC??

Infosys, TATA,

4 16657

What is plc and how to do preventive maintenance

1 5430

why +24 v and -48 v give to BTS? If -48v protect from surge then why we not use -24 v?

1790

how the synchronizing is obtained at bus couplers in grid substation? (because there we cannot change the frequency in one of transmission lines like in generator synchronization)

2315

why it is unable to birds to be on a 220kV 0r 132 kv lines like on 33kV and 11kV lines?

MSETCL Maharashtra State Electricity Transmission Co Ltd,

4 8123

what is dc mator?types of dc motor?losses in dc motor?what is the mechanical,electrical and commercial efficiency of a dc motor?

2036

what is the difference between a hooter and a mcp

2 12171

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Un-Answered Questions { Electrical Engineering }

what is the difference b/w absolute encoder and incremental encoder?

2032

could an induction motor be used for regenerative braking in electric-train control? in this type of application would some scheme have to be devised to obtain low synchronous speeds while braking? would induction-motor drive, therefore, be suitable for passenger service?

1984

what is the formula for calculating the phase clerance between two phases and phase to earth how to calculate the cable for a motor

1963

What is the mechanism of WTI

1751

I am a electrical engg. diploma holder,applied for junior engineer (electrical),Kolkata RRB. Have I to attend all electrical,mechanical&civil portion in written exam.???

15583

what is the Pickup/drop off ratio in BCPU relays

4588

can u give me a brief idea about power line carrier communication ??

1793

WHAT KIND OF LIGHTENING PROTECTION SCHEMS CAN BE ADOPTED FOR THE FLAT ROOF OF BIG DIMENSION.

2088

primery try cell?

2145

What are diffrent type of road taxes?

1939

how does the thyistor work in dc drive?

1939

1.4 What is meant by CT knee point voltage and how would you determine it

1646

What is the difference between earthing,ground&nutral?

6546

how are reversing the direction of rotation of dc motor

1724

3 phase induction motor connection star or delta while using ac drive motor is .75 to 5.5 kw

1924

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