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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

what is positive,negative and zero sequence in power system?

4 9125

what modulation is used in landline telephone signals?

2 10782

how does bode plot have an advantage over root locus? how does it determine the stability of a system depending upon the location of poles and zeroes?

NBKR,

2 24775

Why the output of OP-AMP is always less than Vcc?

1859

In generation,transmission and distribution voltage frequency is either 50HZ or 60 HZ;why are only these frequencies?

2 5080

What is the Ramping rate of Generator. What mena Ramping rate

Siemens,

2 7911

what is ramping rate of generator

Core,

2023

How to create a SCADA diagram on PC? I run the DG everyday but i dont know how that animated single line diagram is created.Please answer.

1 4415

why so maney smaller size capacitor use instead of single Big size capacitor in apfc panel

1 2193

What is the diffrece between ACB & MCCB

8 12757

What is the diffrece between CAPACITOR BANK & CAPACITOR OF MOTOR?

4 7908

On a transformer name plate %IZ(%Impedence) is mentioned. What is the meaning of %IZ and how it is calculated?

Ambe Consultancy, Siemens,

3 27287

what happens when the phase and earth wires comes in contact? and why

2 5588

how does the switching of capacitors in a capacitor bank take place when we use them at the load side to reduce the power factor?

2 5171

how to calculate power loss cost of aluminium conductor and copper conductor?v=500v.i=100A.x-section area=68mm.squre conductor

1 3881

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Un-Answered Questions { Electrical Engineering }

i am an maintenance engineer. one distribution board have 5 feeder. recently its ELR trips frequently, but it take some times after trip( 10min,20min..)but 3 feeder no load. two feeder only loaded. i checked one feeder IR value all values are above 50Mohm.but B phase to Earth is only 9Mohm.any problem about low value

1884

SIR, GIVE ME OPGW SAG CALCULATION FORMULA I AM DAE ELECTRICAL. THANKS

6740

Which motor is 3.3 or 11kV more reliable, in terms of efficeancy,maintenance, reliability.

2069

what is the function of gss in the dg set.

1915

Difference between megger test equipment and contact resistance meter test instruments?

1291

What is the breaking capacity of transformer and how can we calculate the breaking capacity of tranformer

1843

and gate circuit diagram,amplifier circuit diagram

2030

What is the necessary condition for stability.

1166

who many types of fire explane with exmple

2170

what is dry and wet frequency withstand voltage? why & where it is used??

2369

why the neutral point in connnection oscillates?

2215

I am a possesor of c licence from 1993. I forgot to renew during the year 1998. During that time I was working at TNEB to till date. Is there any possibility to get renewed? or to apply for a new one?

1996

What is true sine wave or pure sine wave inverter?? Is it sine wave or step wave?? If it is step wave, waves with how much step is considered as pure sine wave? Is it possible to produce pure sinewave using power electronics?

1827

Define resonant frequency?

1150

How to discuss the phase shift of transformer considering open delta?

1421

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