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 4655

Explain types soft starters?

Siemens, TCS,

7 21702

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

TCS,

2291

Why DC current is not used in transformer?

JK Paper, TCS,

20 41927

what u meant of power plant?

5 9073

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

century,

6 11358

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

L&T,

4 31494

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

Ambuja, Pristine,

3 9480

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

1892

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

1 3789

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 3492

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

NTPC, ONGC,

11 65425

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

Pyramid Saimira, TCS,

10 20950

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

NBCC,

3 10489

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

6 10854

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Un-Answered Questions { Electrical Engineering }

A 100KVA SINGLE PHASE TRANSFORMER 10000/200V,50HZ REQUIRES 300V AT HV SIDE TO CIRCULATE FULL LOAD CURRENT WITH LV SHORT CIRCUITED.THE INTAKE IS 1000W.THE % OF REGULATION ON FULL LOAD AT 0.8 PF LAGGING WILL BE HOW MUCH AND THE SECONDARY TERMINAL VOLTAGE ON 0.8 PF LEADING WILL BE

2530

In single phase capacitor motor, if the motor rotate reverse direction then how much power will be consumed by the motor and why?

1940

How do I calculate/select Droop CT ratio for various capacity of generators?

3620

what is the use of the puls transformer in UPS & how it works???????????

2176

HOW TO REDUCE POWER PLANT AUXILIARY POWER CONSUMPTION?

3363

Why we find the sensitivity for the CT's to check?

1820

5.WHICH TYPE WELDING PROCESSES USES NON CONSUMABLE ELECTRODE.........

2045

What the difference between three phase contactor (coil 110vac) & three phase SSR (control voltage 110Vac)? May I use contactor in place of SSR?

2122

why motor range is available 22kv,30kv,37kv,45kv and so on? why motor range is not available 21kv,24,25,26,27kv and so on?

2758

percetans

2140

What is evaporator & condencer & compressor

2121

What is making & breaking current ???

1466

What is servo motor? what is its purpose?

2014

Does magnetomonopoles exists? one maxwell equation strongly suggests no, but how about their existance in plasma?

1968

is ac supply can store

2050

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