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 27095

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

Deepak Fertilisers,

8 36413

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

OPS,

5 13744

Why motor initial starting current is high?

Pennar,

9 63506

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 25695

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 13425

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.

2256

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

1 4605

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

BARC,

2 5515

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

2 12282

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

1 3289

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

vguard,

1 12937

How to control speed of DC motor with AC power?

vguard,

7 13562

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

Electrotherm, JSW,

11 31472

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

7 18494

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Un-Answered Questions { Electrical Engineering }

The height to which the liquid in a tank to be maintained for a certain constant velocity?

2005

how line turns ratio changes in 3 phase with change in connection

1987

What is the effect on 3phase induction motor if current setting knob of DOL kept at minimum current?

3745

c++ write a program to use a fuction call "max"which accepts an intger arrey of size5.as an arrument and return the larger and smallest of the arrey to main without changing. the original changing of the original position of the element of the arrey.

1923

what is the power rating of CPU, CRT type moniter, LCD type moniter,scanner Approx.

2208

can we make a electric generator,which can not use any type of fuel,air,solar,gas,thermal,coal,petrol,etc and able to produce electrical energy (or self electricity generating generator)

1931

can someone explain that how the speed of the protection system affects the fault level calculation?

2097

WHAT IS MEANT BY INSULATION CLEARANCE IN VACCUM?

1985

Why transformer used in UPS??

1607

what is alluminium arm in ab conductors

1997

What magnetic circuit is formed in berry-type constructions and why?

1077

True or false question. 1.The fuse provide phase and neutral 2.power loss in electrical circuit can take place in (resistance or inductance or capacitance). 3.two phase system each phase has separated by a phase difference of (90 or 180 or 270 or 45). 4.3 phase balanced star connected load neutral current shall be (line current or phase current or zero or unity)

1589

where reactive power is used

2054

How to work E.L.C.B and how to connect in circuit.

2018

ult of expression 'document.FrmQF.myem

2084

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