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 CALCULATE LV CABLE SIZING?

L&T, MRF,

2 8513

HOW TO CALCULATE EHV CABLE SIZING?

L&T,

2 11088

WHAT IS THE USE OF EARTH SWITCHES?

L&T,

3 67335

HOW TO CALCULATE CT AND VT RATIO IN PRTECTION AND METERING?

College School Exams Tests, L&T,

1 26268

How to calculate % Impedence?

ISRO,

3 8595

In Railway,why we are used HT Line 25KV ?.why we are not used 11KV,33KV and others for This?

Airtel, BSNL, RRB,

37 45493

why dont we connect the two 12 V DC batteries in parallel, for an inverter (UPS)? is there any harm ?

6 9143

will we have to design the UPS differently for both i.e. if we want to connect the two batteries in parallel and/or we want to connect the two batteries in series ?

4 6803

what is neutral ground resistance relay? how it is helpful in protecting system?

5 8908

how to calculate of which rating transformer should be selected? take any example

2 6247

in a 740 kw dc seperately excited motor field voltage is constant about 17.4 volts and armature voltage is500 volts dc. how it is possible to have two different voltages from single transformer of output voltage 500 volts? if any difficulty in question contact ajitsingh.kadian@gmail.com

1 4408

is it possible to step down voltage of single phase from a three phase sysem? explain

2 4255

how does ELR works? explain

2622

what is diffrence between primary & secondry transformer?

3 6021

IS there any mechanical connection between the field winding and armature winding of a dc generator?

IOCL,

11 16304

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Un-Answered Questions { Electrical Engineering }

Why the cores of large transformers build up of circular cross section?

2247

HOW MANY TYPES OF FUSE?

2055

explain wiring system

2523

why the value of k is more in shell typr transformers?

1963

What is a signal flow graph?

1035

Why colled 440V to 3-phase supply.

2073

what is a vector protection in transformer

1978

Earth bits close or open. Which is correct

1894

How stabilizer works??

2056

how to calculate the battery AH

2722

hi,every one, i have to write the search paper on "performance policy optimization" of NGN (next generation networks). i need the material on this topic. can any body help me. please tell me any useful site where the good material is available and name of any reference book. it should be a great help for me.

1888

as a electrical student why should i hire you?

2451

L.A. (Lightening Arrester) is located at a place from where transmission line enters the transmitting substation. So L.A. (Lightening Arrester) is the first equipments which has to encounter with lightening, high voltage surges and switching surges. It has to absorb energy of lightening, high voltage surges, and switching surges. L.A. (Lightening Arrester) is made up of layers of semiconductors. If these layers can not tolerate energy released by lightening, high voltage surges, and switching surges the L.A. (Lightening Arrester) blasts.

1053

how we can adjust for three phase motor cold stall time ,hot stall time and thermal register set up?

2846

what do you mean by type zero control sytem ?Give an practical example of type zero contol sytem?

1917

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