Electrical Engineering Interview Questions
Questions Answers Views Company eMail

how to detect the presence of underground cable(while digging road)etc. -give the name of instrument

NTPC,

7 8062

how to measure the A.C flux .-instrument

NTPC,

8 5543

which subject is better to tell when hr asks the area of interest?..

687




if step down transformer step down the voltage,will current will also be proportional step up. If yes then how transformer handle such a large current?

4 5045

What is the meaning of Fault level rating?

Balrampur Chini Mill,

1 8035

Why semi-conducting insulation is used in XLPE cables?

1 3115

I have a 600VA UPS for computer only. It holds for 20minutes only. 1. Can it be upgraded for longer period.? 2. Can it be used for one ceiling fan and a tube light? If yes, how to upgrade?

11 27145

what is the knee point voltage ? what is differtial rela? what is impedance and % of impedane? what is the postive phase sequance ? negative phase sequane ? and zero sequance impedance ? what is sortcircuit calculaion? why take calculation? define stabilty test ? why? what sentivity test? define merz protection ? what is the burden ? class 5p10, accracy, metering ct take knee point voltage test thet time what heppan why dont take knee point test to metering ct?

1399




how can we change the rotating direction of single phase AC induction motors?

L&T, Heubach Colour, MNM Jain Engineering College,

12 64959

why C T secondary are rating 5A generaly .

7 7485

why earth hole size is biggest in socket point.

5 5897

If DG runing time Neutral earth connection Dissconect what will be the effect in load and equipments.

Reliance, HP, GE,

3 4929

If DG runing time neutral is disconnected what will be the effect in Engine and Electricial panel.

HP,

2 3389

What is transformer break down voltage.And what is flash oil flash point.

HP,

1 3072

Why dc Supply used in Control circuit.

HP,

12 18923


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Un-Answered Questions { Electrical Engineering }

How does the slip regulator works as a startor

652


how do u gauge the size of the cable ?for eg. consider a 300 sqmm L.T Cable.How do u determine the size of the cable seeing it pratically?

724


how to calculate the battery AH

1389


CAN U PLEASE TELL ME SOME G.D TOPICS FOR APGENCO INTERVIEW&G.D

1144


Can anyone explain me about the RLC based Impulse high voltage generator and how to and operation of Series resonant High voltage reactor...?

592






what is meant by re-rolling motor? how it differs from standard motor?

647


While testing a ZCT what parameters have to check or measure?

958


How to check the cable fault / hv test of transformer cable.

577


Can any one provide the inspection procedure of MIMIC for VFD panel? Details: If someone wants to have a mimic in the VFD panel what are inputs considered for the mimic(like on,off,trip) whether we are able to add speed variation in the mimic(if so how can we get) and what are the parameters to be checked in the MIMIC during inspection?

769


what is the difference between an alternator and a synchronous motor

732


i am completed diploma in ece,and working in ht and lt lines.so is elligible diploma in ece for get electrical C Licence?plse give ur opinion?

306


in a simple IDMT relay we use neutral point of ct for earth fault then what is the requirement of neutral ct and cbct?

849


Can a generator rated 400 V, 60 Hz be used in a 50 Hz System? Yes or No ? Why ?

353


hi, i finished b.tech eee in 2008, im worked in dg sets mfg company , now i left job in 6months back, now again i want get job core side, how can i get? is there any couses we have learn to get better oppurtunity? /

575


what is cathodic protection and why it use in industries?

832