Electrical Engineering Interview Questions
Questions Answers Views Company eMail

When a square wave is applied to primary of a transformer then what will be output wave form of secondary ?

842

WHY DOES NEUTRAL DO NOT CARRY EVEN THOUGH IT CARRIES RETURN CURRENT?

1 4048

why AC signals are represented by sinusoidal waveform?WHY other waveforms not used for representation

710




explain the working principal of the circuit breaker?

5 7289

What do you mean by pf of a generator? Power factor purely depends on the load (wether inductive, reactive or unity) then what does the pf mentioned on the generator nameplate means?

3 6811

what is the difference between diode and zener diode?

4 4945

How can CALCULAT the current carrying capacity of aluminum and cOpper cables respective of that Sq.mm ? with formulas ?

Havells, Bajaj, L&T, Eagle, Godawari Power and Ispat, Sterling Wilson, Polycab, Mascot, SGML,

11 157896

how we can calcultae the short circuit level for bus bar

Jaiprakash, Panorama Apparels,

937




what is the difference between indoor package substation and outdoor

3 9792

what is package substation.how many types they have

ABC,

863

why we use only sine wave in ac why we do not use other wave forms

NTPC, BARC,

21 33937

name the famous power plants in ap and vwhere it is located with capacity details

BARC,

1 2896

why the capacitors works on ac only

5 13546

how do u get less voltage in star connection

BARC,

4 5681

what happens if i connect acapacitor to a generator load

5 9768


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Un-Answered Questions { Electrical Engineering }

from where the self excitrd induction generator get the power?why is the voltage regulation is poor of seig?

879


I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?

635


Why we use mho Relay in long transmission line?

243


Is a direct shorth ciruit on a branch MCCB in a Low Voltage Switchboard a correct means of tesing the performance for discrimination?

932


Draw the line diagram of diffretial relay connected to transformer?

1173






what is method for testing CT

848


number of I/O devices in siemense plc

875


hi pal, i am vengatesh from tamilnadu(chidambaram),i have called for the written test for the post of jr executive(ELECTRICAL) of AAI ,I dont know about the question paper pattern,so any kindly help me to face the examination,post me the model question papers and some tips to write my examination to (vengi.annadurai@gmail.com)

638


What are the types of piano switches?

635


sir iam from electrical and electronics branch ,can i appear for the hpcl offline requirtment? if yes please mail me on vikram_raju25@yahoo.co.in

825


What is big transformer parts and their function ? Ty

730


Why we use circular(Stepped) cross section in transformer core?

931


HOW TO CALCULATE CAPACITOR BANK OR HARMONIC FILTER CALCULATION

1001


how to calculate slip ring induction motor stator and rotor currents??

819


how to calculate mf when meter and cTPT detail are given

551