Electrical Engineering Interview Questions
Questions Answers Views Company eMail

any earth foult trip the relay but in welding time not trip by earth foult

Power Grid, Siemens,

2724

Explain Circuit Breaker Trip Characteristics in detail.

L&T,

1674

why tan delta test is carried out in the power transformer? which parameter are measure?

1 4021

can we use IGBT as a AC-DC converting device in the applications?

2 3474

placement paper samples of mspl company

MSPL,

1511

What is meant by sotf,lbb,power swing,pole discrepency,auto reclose?

Bunge, Electrical, Omega, TCS, TNEB Tamil Nadu Electricity Board,

1 6171

How to discharge the battery as quickly as possible ?

1 3040

What is the difference between rated and maximum speed of 3phase induction motor.....? Can the motor speed exceeds the rated speed..?

1 4031

Is there a standard depth of gravel fill in Substation Switchyard? Please give a design/drawing. Thank you.

4809

Why capacitor blocks DC current?

2 2893

Why AC current leads voltage in capacitor and how?

BMB,

1613

What is the difference between voltage and emf ?

DRDO,

3 5934

What is the function of a capacitor in a ceiling fan?

2 4593

What is complex power?

DRDO,

1 2981

Why the power generated in dams is complex power? Why the generators in dams cannot produce Real power directly (i.e power which has zero reactive part)?

1321


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Un-Answered Questions { Electrical Engineering }

what is the minimum winding resistance of 30hp compressor, to run or to switch on

1397


bsnl tta exam question

1458


How to detect voltage vector shifting in interconnection protection.

1461


Readings of ER300P Trivector meter

5841


Draw the equivalent circuit of crystal oscillator?

757






How Can I calculate for the photometrics requirements for a street lighting? Data given are: 45 units of 6 meter light pole with 150 watts metal halide lamp, 220 volts and installed in a promenade area.

1415


how to check regenerative load in drived motor

1699


what happened when we supply a dc current in dc motor?? can it worked properly?

1460


What is the current carrying capacity of 0SWG,3SWG,10 & 12 SWG solid bare overhead copper conductors?

2955


Explain in details how you would react to an unexpected incident when your supervisor or manager is not around to give instructions?

7309


What is the function of electron gun assembly used in crt?

651


my UPS suddenly goes off and all panel light also blow off.This happens even main electric supply is not interrupted.After some time it automatically starts functioning normally.Batteries are new.

1561


What are the disadvantages of hydropower?

655


Why is back emf used for a DC motor? Highlight its significance.

697


1.25 kg of hydrogen are burnt with stiochiometric air, the mass of air in kg required is

1440