Electrical Engineering Interview Questions
Questions Answers Views Company eMail

The advantages of Magnetic flux leakage technique over Ultrasonic technique for non distructive testing of material.

BARC,

1488

What are the probable causes for failure of heating elements

BARC,

4 19313

Meaning of ingrace protection for motor.for ex IPXY

BARC,

2339

how to generator maintenance (A Check, B check,Etc)

Cummins, HCL,

1764

why exciter frequency 150 Hz ?

Siemens,

1 8925

what is difference between 3.5 core and 4 core cable

Havells,

5 73785

DRAW ACIRCUIT DIAGRAM OF 100 KVA 415V/55-0-55V DELTA TO STAR TRANSFORMER

SRA,

1597

can we start a 6.6kv ht motor with 415 lt supply

1 3950

why rms value of voltage is fed to transformer

Bhel,

1 3352

A IS TWICE AS GOOD A WORKMAN AS B AND TOGETHER THEY FINISH A PIECE OF WORK IN 14 DAYS.THE NUMBER OF DAYS TAKEN BY A ALONE TO FINISH THE WORK IS 1.11 2.21 3.28 4.42

Ramky,

3 13924

what is the breaking capacity and making capacity of circuit breaker and how

1585

Transformer Specification say 66/11KV, 23/27/35MVA OFDAN,what is OFDAN? we know ONAN,ONAF or OFAF

Siemens,

2 6104

what is different between grounding and earthings?

4 5819

which metal use as a electrical shunt?

2 3282

What is applied voltage for meggering a 6600V HT cable

Sail,

2 7088


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Un-Answered Questions { Electrical Engineering }

how to failure indution motor insulation & how to improve heat in motor insulation

1410


What is the mmf,rgt and ngt please brief completely

1158


WHAT IS SPEC OF CLEANROOM MOTOR AND LIGHT FITTINGS?

1806


Why do we use copper cable for HT Supply and why not Aluminium?

1522


Dyn1 transformer vector group testing how to do

1329






why Induction Generators are not "Black start" ? and apart from WTGs where this types of generator are generally used?

2213


what transformer we used normally and upto which kva?

1486


If we impress a dc voltage of 230 V on an unloaded 230 V, 50 Hz transformer it wi A give high secondary voltage B burn out C give secondary voltage as per K D none of these

1574


What will be the diameter of pipe between conservation tank and transformer

1449


if we look on phasor of the transformer vaoltage is 180 oppsite at primary and the secondary so to improve a power factor is secondary should kept negative to improve it primary side means is -.90 became +.90 at other side

1389


write circuit diagram for a motor rotate in forward direction once it started and when pressed the same button it should rotate in anticlockwise.

2057


we have provided 30 nos. relay contacts in panel.I want to know how do we do the numbering for the relay contacts as per any applicable standards

1537


how could we calculate the no of outgoings from a 800 watt distribution board

1253


how many electricity poles are there and what are the names and their sizes.

1428


by what factor the starting current is used when comparing star and delta connection for motor starting?

1572