Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is the basic diffrence between Electronics & Electrical engineering

13 9427

Why we use Carbon & graphite mixxed brushes in the DC motor?

6 12019

If carbon brushes spring tension either loose or tight, what happen on Motor performance During Full load Operation?

TATA, HP, Electrex,

5 5612




Why in DC drive u r using in Klin operation in Cement Plant?

7 14583

Why use prefer Dc drive in place of Ac drive for kiln Operatio in Cement Plant?

Orient,

4 7365

why do we generate only 3ph ac?is it possible to generate 4ph,5ph,....?

Reliance, Bhel, Accenture,

6 9990

who invented electricity?

L&T,

20 11840

during positive and negative half cycle of ac supply what happenes in the load?

Wipro, Siemens,

1 3592




why do we generate sinusoidal ac?can we generate some other waveforms by alternators?

Siemens,

11 10323

What is the unit of vaccum?

Manhattan,

14 9558

Why Hg means mecuiry used in vaccum mesuring unit?

Manhattan,

2 4106

Do you know how to measure the earth resistance?

Manhattan,

7 9175

whether a separate starter is used for a motor while it is connected to a vvvf panel?

2 2823

What is Torque Vector Control in VVVF Drives?

Schneider, PEL,

6 10998

what is the use of choke on tube light fitting

TCS, Bhel, HSBC, Dharma,

37 55663


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Un-Answered Questions { Electrical Engineering }

mccb service sittings be done?

536


How I can Compare 120v/60Hz versus 220v/50Hz ? Please tell me both advantage and disadvantage ......

702


percetans

895


What is the effect on Power factor and capacitor when your company load is more than 70 % of welding transformer

433


what is W.T?specify the acceptable range?

574






what is the effect of power factor of machines in starting current

694


What is rms value wher it is used??????????

789


What is the loss of transformer of 220kv/11kv, 63/80 MVA and 18.05% impedance

706


What is the Load Capacity of Panther conductor (0.2) and dog conductor (0.2) 

1445


what is the advantages og idmt relay over magnetic relay??

1787


Give details on how you intend to handle a challenging position you are posted to manage unexpectedly as a company staff?

1912


WHAT ARE THE DATAS REQUIRED FOR PROTECTION AND METERING AND CONTROL AND LOGIC PREPARATION,HOW TO STUDY THE PROTECTION AND METERING?

725


at which voltage level arcing ground is occurs ??????????

700


WE know that for Inductor X=2pifL,In DC f=0,then X=0 so,V=IX=0;But In the DC excitation of rotor of AC generator,DC motor field coil which coils are inductor so why does not applying DC voltage short the rotor coil of AC generator and field coil of motor?If it would then DC source might be damaged but it is not happened. Why does the strand conductor of Electrical power transmission line make twist?

2577


How to check the LM324 Ic

5986