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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

Difference between online and offline UPS?

11 26749

How to calculate earth flat size for 250 Kva DG and transformer?

Deepak Fertilisers,

8 36177

can we use HPSV LAMP in HPMV LAMP fixture ?and viseversa.

OPS,

5 13555

Why motor initial starting current is high?

Pennar,

9 63179

megger generates D.C. voltage while earth tester generates A.C.voltage is it true? I know for megger it is D.C generator but what about earth tester?

IOCL,

4 25534

What is the cause for a blown fuse in one phase of primery side(HV) of a three phase transformer( 4169v-460v) in the time of closing its supply breaker. There is no load on the secondery side of the transformer in this moment.

Novachem,

3 13327

iam using DM 3251 voltmeter(1 percent accuracy)for 11KV system PT ratio is 11KV/110V.can anybody explain what is the max and min voltage deviation.

2219

What is mean by Sub Synchronous Resonance(SSR)???

1 4510

Will sag depends on the Specific Resistance of the conductor?if not Why??????????

BARC,

2 5414

how to calculate the neautral earthing conductor size for a 500kva dg set.

2 12185

What are the implications when the power factor is is leading condition ?

1 3216

What is double delta conection in AC Motor? And can we done the double RPM of the motor by double delta conection?

vguard,

1 12845

How to control speed of DC motor with AC power?

vguard,

7 13350

why transformer is giving some humming noise .....?

Electrotherm, JSW,

11 31077

when the rheostat kept in minimum to maximum position in motors what will happen?

7 18268

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Un-Answered Questions { Electrical Engineering }

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

1553

full form of flry b

4123

What will happen if a dc source is given to a tubelight. Will it work or wont it work....

1943

i ha done my 10th with 71% ,ITI with 81% 11th with 75% 12th 43% apprentiship with 71% in SAT i secure 1390 ,TOEFL 27 i was refused four times and in all me interview visa officar told that i am not Qualify for study in USA but i completed my 12th yes i got low persentage in my 12th but i seen to much student they already got visa with them 3 or 4 backlocs so why they are refused me ?

3403

What are the limitations of Kirchoff's laws?

1550

What is stacking factor? What is its approximate value?

1358

how to identify vector group of three phase transformer by voltage method?

1583

plz explain the auot-reclosing circuit in electrical engineeing

2414

Shall I use 40A semiconductor Fuses in 32 A SFU ? Frame size is same. What Happen if Fuses burn on SFU?

2086

what are the necessary basic electrical topics to learn for mechanical engineer to deal practical problems.

2189

How to connect the chemical earthing and complete process tell me plz

1825

What is the difference b/w fanuc alpha series 16i and 18i controller. what is stand for i

2032

what is mean by transition resistance of transformer?

4493

write encoder 17 pins details? pin a;b+, pin b;w+,..pin s & t. what is the meaning of b+, w+? explain;

2112

1. What is the exact formula for one weber? for example,(one ampere = one coulomb electron of electrons crossing a point of conductor at one second. i.e, 1A=1Q/1sec)

1851

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