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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

The insulation resistance of a cable can be measured by

3 5271

Starting times for soft starter & power factor is thier any standard or datas available in manufactures list. Kindly suggest.

1933

What's the differs between voltage & current & emf.

CTS, NTPC, TCS,

1 4297

i want to measure voltage difference between neutral and earth so i just simply use voltmeter. my question is that may i use this measure continuosly.or there are some electricity board restrication on that? or it creat some problem on my measuring device..?

NEEC,

2 4509

What is differance between alternator and generator?

IOCL,

4 8902

How the unidirectional torque produced in dc motor

CGL, Sail,

2 9835

while doing high potential for 11KV 3 core cable how much leakage current will obtain?, what will be acceptance value?

Voltech,

2885

Why neutral is used in electrical system?

2 3573

what is the importance of neutral in elctrical system?

IOCL, Kharafi National,

4 8581

How we can measure the thickness of bus bar for a given load ? any farmula Plz elaborate clearly.

ITC Infotech, TCS,

2 7603

working of diesel generator ?

1838

Can clean earth cable be considered as low current cable

1965

how encoder works?

ITC Infotech,

1 3971

why we don't use air circuit breaker on H T line in place of vacuum circuit breaker ?

Jindal,

2 6230

IT IS SAID THAT THE OLTC OPERATION SHOULD NOT BE PERFORMED WHEN THE TRANSFORMER IS GENERATION TRANSFOREMR/STEP UP MODE. WHY IS IT SO?

MSETCL Maharashtra State Electricity Transmission Co Ltd,

1 3762

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Un-Answered Questions { Electrical Engineering }

Would you recommend to replace all oil filled cables with xlpe cable for hv transmission with the current technolgy for xlpe cable?

1493

I am doing apprenticeship training at HT switch yard in NLC. How can i get electrical c license. ??? What r the rules for getting it as an apprentice? ??

1844

what is rocking arrangement in arc heating

2137

Why hydropower stations are preferred solution for meeting peak loads in grids?

1006

Motor,transformers,capacitor tubelight etc....

1647

H.t motor 6600 volt to same motor lt supply 440volt supply applyed to h.t motor to effect....

1891

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?

1990

How to calculate approximate load loss of a distribution transformer by knowing %ge imp of transformer?

2215

How npn and pnp transistor works

1139

What are the main faults of DC generators?

2997

What is the best thing to protect the motor from running over full current. CT or O/L or pressure transducer at the given pressure rating

1540

IN MY SYSTEM THERE IS ONLY OVER CURRENT EARTH FAULT RELAY IS AVAILABLE. FOR THE UNBALANCE SENSING IS THERE ANY RELAY IS AVAILABLE? THE SAME CTs WHICH ARE USED FOR THE OVER CURRENT EARTH FAULT RELAY CAN USE FOR UNBALANCE ALSO?

4143

what is positive , negative & zero equivalent system resistance

1941

What is the difference between grid and off- grid system??

1953

state types of reflectors in illumination engg. ???????

1937

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