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 8189

how to measure the A.C flux .-instrument

NTPC,

8 5654

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

735




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 5165

What is the meaning of Fault level rating?

Balrampur Chini Mill,

1 8246

Why semi-conducting insulation is used in XLPE cables?

1 3165

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 28074

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?

1428




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

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

12 65943

why C T secondary are rating 5A generaly .

7 7594

why earth hole size is biggest in socket point.

5 5978

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

Reliance, HP, GE,

3 5017

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

HP,

2 3470

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

HP,

1 3132

Why dc Supply used in Control circuit.

HP,

12 19375


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Un-Answered Questions { Electrical Engineering }

We need to current density & short circuit calculation at 65kA for aluminium & copper busbar.

428


Between educational qualification and practical work experience, give us a brief explanation on your practical experience in your past Endeavour that you performed well to the satisfaction of your past or present employer?

969




878


which stabilizer is better ? AVR, Servo Stabilizer, Static stabilizer etc & why explain it

1566


Load break swicth maintenance procedure.

554






how can get electrical "c" licence.i am complited in DEEE.PASSING YEAR OF 1993.WORKING IN PVT COCERN LT LINE.PLEASE ADVISE ME .CELL NO 9994786021

716


where is the need for short circuit test for 3 see is required and why? can you explain in brief with application

638


we specify current in case of feeder but in case of distributor voltage, why?

575


solor panels arrange some angle,panel is flat fitted energy was produced or not why?

610


Why we are going for converter transformers for DC drives application instead of distribution transformer?

703


What is principle of Floroscent tube 36watt.

760


1sq mm dc powr cable can carry how much dc currnt

644


Purpose of providing neutral isolation panel for parallel operation of diesel generator

171


I need HT sphere gap calibration table. Can any body help me.

761


how to extend relay operating timing in 24V dc relay card (without using Timer )

650