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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is switch gear? How it is work ?

AbaQulusi Municipality, Lupin,

1 4826

How is efficiency of DG set calculated? At many places I found the efficiency to be mentioned in percentage. But at some other places I found kWH/ litres. I want to know how dimensionless percentage value is arrived at?

ADS Spirits,

1984

How are load losses and no-load losses measured at site in a DG set?

1794

HOW WE WILL CONNECT THE PHASE CTS AND NEUTRAL CTS TO REF RELY

3 5862

what will be the maximum winding temperature of 6.6kv HT motor 450kw, Full load current 49A. 50Hz Frequency.

DVC,

3299

what type circuit breaker is suitable for connecting 1000A load VCb,Mccb?

Gridco,

5 7622

725KW Three DG set Synchronised but DG no-1 power showing 750KW DG n0-2 power showing 500KW DG no-03 showing 500KW. DG is Shynchronised but why this different power showing?

3 6012

WHY WE ARE DOING THE EARTHING IN A SYSTEM. SOME PEOPLE ARE TELLING FOR PROTECTION. WHAT PROTECTION GIVE ME THE CORRECT ANSWER.

2 4757

What is the use of Exciter in generator? & what will be the current of Exciter in 500 KVA DG Set?

2 9973

is there a different b\w ground fault CB and earth leakage

1 3690

why the active power flow of some line is increased when the active power of out is cut ?

TAFE,

2124

i have 400/230v transformer and didnt done the neutral eatrhing. i connected one lamp to one phase and neutral to the earth. but the lamp is not glowing. again i connected neutral to earth and repeated the same. then the lamp is glowing. in the first condition i tested with a line tester also, at that time the tesrer is glowing what is happening i dont know can any one help me?

1 3711

A 60W,250V bulb when connected to a 230V supply will it give more light or less or will be give normal light?

MahaGenco,

3 6960

what happen when we add mentos in cold drink?& why?

2118

What is the material used for the core of a high freiquency transformer?

Videocon,

3 6088


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

i have interview in Pepsi company what type of question will ask please send the question and answeer

3527


Pls Breifly explain about UPS (Inverter,Reserve,Rectifier,Float voltage,Boost voltage).

2837


What are the weight of 800KV DA,DB and DC type tower ?

3214


I use 20 nos led tube 4feet, in pathway 100mtr approximate, so what size cable i use for lighting

1525


what are the different methods for the starting of a synchronous motor.

1181


what are the ''pitting rings''and how cn they be controlled in a series generator

1905


List few applications of d.c series motor?

1183


what is two point starter?

2173


what is RFID? thire application;

2097


How does a tertiary winding filter harmonic(espcially 3rd one) from entering into load system?

1872


EXPLIAN THE IMPORTANCE OF POLY PHASE CIRCUIT.

2234


How to measure the earth resistance value in a concrete pavement(flood light area)?

2269


Dear friends I want to design busbar for1600 kva transformer(i.e2100 amps) what are all the factors to be considered before selectinga busbar what are all the standard sizes of busbars what is the formula for finding current of copper and aluminium busbar

1959


An active element is one which a. Supplies energy b. Absorbs energy c. Supplies energy and convert energy from one form to another

2118


how to find out cable size if load is 2800 watts, 230 volts AC supply and load distance is 1800 meters

1663