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

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 13503

how to measure the A.C flux .-instrument

NTPC,

8 12592

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

2076

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 10072

What is the meaning of Fault level rating?

Balrampur Chini Mill,

1 10959

Why semi-conducting insulation is used in XLPE cables?

1 5003

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 41154

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?

2750

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

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

12 80519

why C T secondary are rating 5A generaly .

7 12956

why earth hole size is biggest in socket point.

5 9840

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

GE, HP, Reliance,

3 9000

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

HP,

2 6628

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

HP,

1 5770

Why dc Supply used in Control circuit.

HP,

12 30536

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Un-Answered Questions { Electrical Engineering }

HOW TO WRITE A QUENTION ANSWER? I MEAN SHORT OR LENGHTHY ? OR FROM THE BOOK AS BOOK..... SOME TIME WE GIVE A ANS FROM THE BOOK AS LIKE BOOK ND WE GET MINIMUM 60% MARKS OR MORE THEN....... THEN HOW TO FILL THE Q-PAPER?

2058

1.why should we connect the measuring instruments in l.v side in short circuit test of a transformer? 2.why the power factor is less in open circuit test of a transformer?

2077

Sir, I have applied for the of Jr.engineer(Electrical & Electronics) & ASST. LOCO PILOT at ALL RRB BOARDS. please send me all RRB Boards solved papers in the year of 2001 tO till date. i requested send me the papers to my id as soon as possible (jet_0991@yahoo.com). (This is very urgent) Thank You,

1848

IF HT CAPACITOR IN ON POSITION IS THERE ANY LOSSES I.S I SQURE OCCURS IN THE SYSTEM

2173

The efficiency of a 100kva transformer is 0.98 at full load as well as half load , for this transformer what is the Copper loss at full load ?

2337

i have been tasked with a design of protection, metering and control(PMC) relay panel extension to accommodate all PMC relays.There is an already existing panel where this one will be built.What are the design aspects for this kind of project? thank you.

2124

What is the effect of positive feedback on the stability of the systems?

1089

If you have an earth with pilecap then your resistance is really low. why and how?

2008

if sf6 gas low in gis what will happen

826

how does an encoder work???

2533

how to apply b license to c license in tneb

1824

Is there possible to Test Transformer for Overfluxing Capability. Or is there any firm who does Overfluxing Test on Transformer?

3111

which network topology offers the greatest level of tolerance?

2159

Differentiate between low pass, high pass and band pass filter?

1073

Why have to use copper cable for local isolator to motor ?

2108

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