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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

Why the TNC switch is called as Memory switch

Reliance,

1 4161

how to understand the controling circuits example star- delta-starter controling daigram please let me know

GMR,

3 8449

how many earthing should give for transformer body and nuetral

GMR, GOMS,

5 9781

i am electrical and elctronics engg passed out in 2009 want to attend for reliance placements.plz send me apttitude ,technical and hr question answers to my mail plz. my mail id-kat.bindas@gmail.com

2023

Is C.T will sense the current in both direction. As i know the C.T will sense the current in only one direction.

2 6045

What is the diffrence (Technical & Construction ) between CBCT & Normal CT?

2031

Why the cost of CT increases with the decreasing of its CT Ratio (Technical Reason)?

Vedanta,

2 6257

How the size of transformer decreases if we increases the frequency?

2 5395

Can we use delta-star neutral grounded 3 phase power transformer bi-directionally.

GMR,

2 5746

how to synchronize 3 phase slip ring induction motors of different ratings.

GMR,

2298

can we use existing delta star with neutral grounded,step down(6.6kV/415V), 3 phase power transformer bi-directionally.

GMR,

3 6223

1.differance between onload ups and off line ups.

CTS,

1 6199

want happens when a dc is given to a commutator

2 5387

A three phase transformer 460v primary 220v secondary (three phase four wire system.) Why did we get 460 volts across the neutral on the secondary side?

3 6863

I have 12MW gas engine based power plant its running parallel with grid. my problem is When cpp run in island mode(without geb) that time geb transformer power factor is 0.2 lagging. When cpp run with parallel that time power factor is 0.94 lagging So how can i maintain power factor ofgeb transformer in island mode 0.9 lagging?

SPCL,

1 2853

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Un-Answered Questions { Electrical Engineering }

how mass curve differs from hydrograph.

1789

In a single how much maximum current and watts using

2162

How to decide no. of Step and Kvar for APFC Panel 40 kvar MD: 33.12 KVA Avg pf : 0.8540

1107

Why wind turbines wheels rotate constantly

1050

state working of halogen lamp?

1824

What Normal(Tangent) towers and Tension(Cut-point) Towers?

6220

why the starting voltage drop in a cable needs to be limited?what is percentage of the voltage drop allowed during starting?

1817

Give accurate definitions for these electric terms: Inductor Inductance Inductive Induction Reactance Reactive Esam Baraka ٢١ ساعة

1396

what are the advantages and disadvantages of speed control of 3 phase induction motor by varying frequency explain with drawing

2672

why voltage form factor of PT are increase , when it is ecpected heigher spikes in system. how it is calculated.

2138

XYZ

2143

Why do not we prefer non conventional sources of energy to conventional sources?

1203

can indirect loading be called as phantom loading?

2197

what will happen reduce the transformer voltage from 415v to 406v, is it save the energy,? are this methodis good to reduce the energy.?

1524

what is the effect of un-synchronized power.

2061

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