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

NTPC,

7 11622

how to measure the A.C flux .-instrument

NTPC,

8 9610

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

 1562

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 8441

What is the meaning of Fault level rating?

Balrampur Chini Mill,

1 10084

Why semi-conducting insulation is used in XLPE cables?

 1 4281

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 37289

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?

2299

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

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

12 76341

why C T secondary are rating 5A generaly .

 7 10827

why earth hole size is biggest in socket point.

 5 8330

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

GE, HP, Reliance,

3 7462

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

HP,

2 5505

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

HP,

1 4919

Why dc Supply used in Control circuit.

HP,

12 26946

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Un-Answered Questions { Electrical Engineering }

What happen in ups if phase reverse?

1679

Give idea about General Engineering. From which book i can study this topic. Pl. reply me via email. My email is ravi@bhelhwr.co.in, also give the name of book/website, from where i can prepare it.

1610

can we use trip light with bus coupler?

1432

Why the output of OP-AMP is always less than Vcc?

1466

What is the Temperature to be set in Thermostat provided in Marshalling box of the Transformer / Motor.

2537




When can we take Neutral as common neutral link?

1212

what is protection class current transformer.

3430

hi there i am highly enthusiastic about discussing electrical concepts , and hence i wud lyk to invit al do intrested to join me at gtalk and hav a dscussun of the concepts , ad me as a freind . my email id is rakesh.2k99@gmail.com

1634

how to get bearing & winding temperature of an induction motor?

1454

What is “pu” in ee?

646

When semiconductor fuse does save thyristor in each cycle of conduction? Why under voltage setting keep less in SPRS and more in DC drive?

1633

What is the function of the generator exciter?

919

thyristor controlled APFC panel design parameter?

1353

Dear sir, How to calculate 3.5 core pvc aluminium armoured cable meter wise carrying amps rating.Please give the solution with a good example.

1305

what is control supply rating of a machine

1490

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