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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

What is the 415V AC Soft starter? Explain with an example?

TCS,

1 4741

Explain types soft starters?

Siemens, TCS,

7 21934

TELL ME, WHERE SHALL I GET BASIC ELECTRICAL ENGINEERING BOOKS IN INTERNET?IT SHOULD CONTAIN ALL DEFINITIONS?

TCS,

2322

Why DC current is not used in transformer?

JK Paper, TCS,

20 42516

what u meant of power plant?

5 9221

if 50hz transformer is required to be run on 50% frequency what needs to be done???????????

century,

6 11569

How Negative Phase Sequence Relay works in case of Synchronous Motor?

L&T,

4 31642

How we detect the leakage current of 11 KV H.T. motors and waht is the maximim limit?

Ambuja, Pristine,

3 9576

HI SIR, AM PREPARING FOR RRB FOR SECTION ENGINEER POST. PLZ SEND ME THE PREVIOUS QUESTION PAPERS AND HELP ME. I HAVE NO ENOUGH TIME MY EXAM DATE IS 22ND JUNE.... MY EMAIL ID IS nalla.amarnath@gmail.com

1933

Slow acting fuses are most often used for which application a) Lighting circuit b) heating circuit c) Motor D) Radar circuit

1 3860

What are the consequences in using existing step up transformer (primary 6.6kv/175A, secondary 480v/2405A) for step down transformer to have a 6.6kv output?

1 3570

what is neutral grounding? why is it required? what is neutral grounding resistor and how is its value calculated??

NTPC, ONGC,

11 65753

Why we are using Ohm's law? where it is applicable? explain.

Pyramid Saimira, TCS,

10 21209

WHAT IS BASICS TO SELECTION OF 11 kv Trasformer, send any calculation sheet for selection of transformer

NBCC,

3 10598

Does frequency change with increasing voltage i.e 220v to 11kv? explain if not?

6 11014

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Un-Answered Questions { Electrical Engineering }

1.why we are using metal oxide gapless block in lightning arrester,2.What is minimum and maximum rating of metal oxide blocks using in india

1967

What is Antipumping Function & If we have C.T how we find the Ratio ?

2028

Explain the method to keep noises low in a control system?

1140

Apparent power is expressed as V * I(Conjugate). Why not in V * I ?

3908

what are the differant std sizes of cable trenches?

2053

oil cooled transformer

2229

What is the effect on power factor, shown by a trivector meter; incase of reverse phase sequence. If the power factor of a system is lag what meter will show in case of reverse phase sequence connected to the meter. and What in case of lead.

2314

Why do we avoid electrical conduits in floors at apartments?

2077

Different STANDARDS (BS, IS, IEC etc) gives different informations on CT specification. How they correspons w r t each other (i.e I mean to say BS provides "knee point voltage" but IS does not, then how can i select CT)

1969

Which type of questions well asked. ?

1697

how can I calculate charging current of cable/overhead conductor? what is roll of voltage in it ?

3681

Why MCCB is Getting tripped sometimes when there is no load in the Midnight ?

1980

how to calculate regulation constants for over head lines? and what are the regulation constant for raccoon conductor at different voltage level and different P.F?

1972

how to flameproof electrical motor on the shaft?

2058

how to calculate the size of the HT cable

1893

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