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 open circuit test is conducted on hv side and short circuit test is conducted on lv side of a transformer ?what is the reason for it ?

HCL, NTPC,

3 48321

why core is useful for a transformer ?and also in its operation ?

1920

why core is useful for the transformer and in its operation

1 3269

1.why should we connect the measuring instruments in l.v side in short circuit test of a transformer? 2.why the power factor is less in open circuit test of a transformer?

1908

why trip circuit supervision is taking through breaker contact? what happen if takendirectly?

GE,

2 3948

why voltage coil in wattmeter called as pressure coil why the pressure term is used in wattmeter?

NPCIL,

1 8239

Why we called L-G fault as line to ground fault why ground? suppose if a line falls on building roof then can we called these fault as line to roof fault? please explain why ground term is used here?

Bhel,

3 5676

If short circuit ratio is high is it bad or good for a machine then tell the reason...

Bhel,

1880

Is phenomenon of resonance is harmfull fr the machine? if not or if yes please explain it?

Bhel,

1747

If symmetrical fault occurs at the terminal of a synchronous motor then how the motor will act...explain it..

Bhel,

1935

Why we use modulus with voltage in stability equation that is P=[E][V]SIN@/X WHY VOLTAGE IS IN MODE VALUE WHAT IS THE REASON?

Bhel,

1 2995

EXPLAIN METOD OF IMAGE OF TRANSMISSION LINE/ WHAT ARE ITS PRACTICAL APPLICATION?

Coal India,

1739

WHAT IS DEGREE OF COMPOUNDING IN D.C MACHINE MEANS? HOW TO READ THE OPERATING CHART FOR ANY ELECTRICAL MACHINES?

Coal India, Ghana Grid Company,

4641

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

Bhel,

1820

Where we can use 3.5c cables instead of 4c cables.Why?

4 13399

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Un-Answered Questions { Electrical Engineering }

i want bhel placement paper for electrical if anybody having pl send to my id kavitha867@myway.com immediately

1837

WHaT IS THE CONCEPT OF INDUCTION LAMPS IN MODERN LIGHTINGS, and HOW IT WORKS TO EMIT LIGHT ( AS NO ELECTRODES ARE PRESENT ) ?" COULD INDUCTION LAMPS CAUSE INTERFERENCE WITH COMUNICATIONS INTO A STORE USING INDUCTION LIGHTING ? WHAT IS THE BENEFIT OF USING THE LOW FREQENCY INDUCTION LAMP , VERSUS LED , AND VERSUS FLUORESCENT, AND VERSUS ANOTHER KIND OF LIGHTING . THANK yOU MOISES GUINDI

1923

What is the difference between vector surge relay (78) and Pole slip relay (98G)

1030

when we have to purchase the transformer by own i.e how much load will preferred HT connection?

1511

what is ground fault in ACB?

1924

what is the working principle of a DG Set, Alternator, & exiter

10044

how many single tension hardware are required on a double circuit transmission tower?

1781

How to do cable earhing? whether by grounding Armour to ground or by running extra G.I wire along with cable? which one is preferred mostly amoung them? If the second one is more preferable how many GI wires to be run along with cable (1 or 2)?

1973

Why IR value of the (HT cable Plus synchronous motor) is less while individually having IR values in GΩ?

1637

WHAT ARE THE CHARACTERISTICS OF AN VOLTAG AMPLIFIER

1871

please forward me the type of questions which would rise while me attending to 33KV Electrical License to my mail ID:vadrevu_raghava@yahoo.co.in

1848

Why hydropower is called renewable source of energy?

856

how many Classification of fire extinguisher

1928

Why can't we take NO LOAD TRIAL of motors having V1 mounting??

1781

what is meant by k-rating in isolation transformer?what is k9, k14 stands for?

2554

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