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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is the deffrence between Siemens S7-300 & S7-400 PLC?

ADC,

4 26539

Which Programming software are use for Allen bradley PLC's?

ADC,

16 18233

what is the difference between ac and dc generator

14 35102

what will happen when choke in tube light circuit was not working???

7 12337

what is the use of starter in tube light?and what it contains

L&T, RRB,

12 43180

How to calculate the transmission losses incase of overhead transmission lines?

Jindal,

6 10007

what is the different between second harmonics and third harmonics ?

1 3218

what is advantage in open delta connection?

20 60485

why are we maintaining some specific gravity in battery ?

5 6207

how do you test the capacitor bank ?

Essar,

12 31689

what is the procedure for cable sizing or on what basis we will calculate the size of cable?????

ANG, Focus, Mecon,

6 16764

How to take vector group test for Ynd11 transformer.

Voltech,

2 11896

How silicon gel sucks moisture in the transformer, its have any small exaust fan behind silicon gel.

4 4875

what is the function of starter & choke in the tube light set & how choke give 1000 volts while switching on.

ADNOC Abu Dhabi National Oil Company, IBM,

14 78319

How transformer winding & oil gets heat.

3 4892


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Un-Answered Questions { Electrical Engineering }

What is difference between Sample test and Routine test in safety standard?

865


What is force on a conductor in a magnetic field ?

220


Usage of flywheel diode in relays

931


Does outdoor isolator loose connection cause short circuit current in that circuit? if yes then how ??

802


Grid fault level [KA]?

1788






What is the meaning of floating point earthing in battery backed systems ?

1091


in HT service 3ph 4 wire service Y-phase voltage shows zero . whether it is meter fault? or what be the reason ? if y-ph voltage zero ,can current is recorded? reasons for failure?

901


What is the de rating factor of cable? What is the importance of the de rating factor in cable select

1463


if a number of plc s are there then how many modbus to be used

1115


how i can calculate the size for fire cable

1094


why single phase to grd test in HV cable?why not 2 phase at a time?

1381


What would be the size of wire used for 2 Ton of window A.C?

1066


What are books to be referred for KPTCL exam?

2819


Write the analogous electrical elements in force voltage analogy for the elements of mechanical translational system.

263


What kind of preventive maintenance are there for transformer?

1380