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 design coil turns ?

L&T,

1985

how to calculate magnetic force genrated by a coil ?

L&T,

2202

what is method of dc current measurement

5 9798

How much energy save vfd if motor run on 50 Hz (full speed)

Reliance,

3 5920

How to Decide(calculate) Bush bar size for copper and aluminiam ?

Essar,

2137

why knee point voltage should be high in Ct for differential protection

NTPC,

1 5732

what are the difference between protection class CT and Class PS CT

13 33809

WHAT IS DC COMPONENT IN CIRCUIT BREAKER?

10 24823

How to calculate HT XLPE CABLE for 11 kv / 433 v , 1500 kva oil type transformer system? plz provide step by step calculation

Engineers India, Indian Railways, Polycab, Shashwat, Sitara Energy, Sonali Bank,

15 131327

Hi friends. m 3 years drop. now d company asks in d interview d reason 4 my drop.what shud b d probable answers 4 that which may not put a negative impression.

2 4998

why we use star connection on the primary side of a transformer?

DRDO, TCE,

5 17992

what is meant by a slip?

10 14872

why transformer is conneted to dc for polarity test.it doesnt work in dc?

ABB, KVPY,

1 7617

What differance between Circuit brekar and Isolater?

TATA,

14 23430

WHY HUMMING SOUND OCCURED IN HT TRANSMMISSION LINES?

6 11929

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Un-Answered Questions { Electrical Engineering }

(1)The demand for electricity , the amount of renewable generation available, the amount of fossil fuel generation available and the cost of the fossil fuel generation are shown in table below period(hrs) demand(MW) renewable (MW) fossil- fuel(MW) cost of fossil fuel(MW) 00.00 - 01.00 2000 1800 2000 30 01.00 - 02.00 2300 2500 2000 30 02.00 - 03.00 2500 2700 2100 45 03.00 - 04.00 2900 3100 2100 50 04.00 - 05.00 2700 2600 2500 45 05.00 - 06.00 2400 2000 2700 50 06.00 - 07.00 2200 1800 2000 36 07.00 - 08.00 2100 1600 2000 36 Assuming that the renewable generation incurs zero cost, determine an optimal generation schedule(specifying the amount of renewable generation and fossil fuel generation used in each period, the cost for each period and the overall cost for 8 hours.)

1866

PLEASE ANYBODY HAVE ELECTRICAL CIRCUIT DIAGRAM FOR CHMER PULSE CD 60M SPARKING MACHINE.PLEASE MAIL ME SUPRIYAAYYAPPAN@YAHOO.CO.IN.

2804

Battery is a voltage source? give one example of current source and why?

1588

which is the most advanced form of SF6 BREAKER?Can we use other gases to quench the arc?

2046

can we choose current transformer secondary, to calculate residual flux in a power transformer, so as its saturation is close to the saturation level of power transformer?

1504

WHAT IS START TO INDUCTION MOTER IN STAR TO DELTA OF >5HP ?

1875

would you please give me any idea about the BARC interview question on electrical? i have an interview on 1st july.....plz hlp me.......its urgent......

2474

what should be the no load current for 3 phase ac motors ranging from 5 kw to 1000kw?

1798

What is a slack bus?

1151

Define gain margin?

1189

How can you sized or estimate the ligthning arrester current rating?

2133

What is dynamo?How it works and what is the function of dynamo in a DG.

2584

internally connection of photvoltic module

1926

How to operate a ac chilar plant?

2484

Why transformer used in UPS??

1604

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