Electrical Engineering Interview Questions
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i m electrical diploma holder i want to do plc $ Scada some body tell me which insitute is best for me near chandigarh

1932

i ha done my 10th with 71% ,ITI with 81% 11th with 75% 12th 43% apprentiship with 71% in SAT i secure 1390 ,TOEFL 27 i was refused four times and in all me interview visa officar told that i am not Qualify for study in USA but i completed my 12th yes i got low persentage in my 12th but i seen to much student they already got visa with them 3 or 4 backlocs so why they are refused me ?

2257

why neutral used in three phase motor connection?

BEL,

3 5179




Is it possible to power factor more than unity?

BEL,

9 6785

why neutral can not used in three phase motor connection?

HSL,

1 10295

What will hapen if we run generator below 47.6hz frequency?

TATA,

9 12423

low frequency protection why recomend?

910

what happen if position of GNA and MNA is changed in machine?

3 6014




what is the means of dedicate earthing?

2 2560

what are the main parts of DG? explian thier functions?

Vizag Steel, Tyco, Tata DoCoMo, Apollo Power,

8 68326

Why MS rod or flat are used in stead of GI rod or flat in switchyard earth mat ?

2 8308

Why arc quenching is used in Diode ?

837

what is effect of brush shift in machine?

1 1211

what is surge impedance loading and it's significant in power system?

2 11370

will we get shock from dc?

L&T,

12 7761


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Un-Answered Questions { Electrical Engineering }

Advantages of using generator circuit breaker (GCB) scheme in a power station ?

3512


What is the loss of power of transformer 220kv/33kv,63/80mva of % imp12.05 at 80%load

518


with 3 phase board on a 63 amp rcd is it ok to have 6 electrical showers 2 on each phase and what problems could happen

640


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.

870


what is the difference between transformer,converter and transducer

302






i will applied in 1U-1W on 440 volt primary delta side. what is the result of magtic balance test

650


The armature of shunt dc motor has 0.8ohm resistance and motor is to run on 120V circuit.If motor is suddenly thrown on circuit while armature at standstill then current drawn by motor will be??Also back emf in normal running is 110V

827


i have faced a problem in ro plant grunfos make bm30type pump it is 22kw pump. We start this pump using siemens 3rw 4423-ibc44, 30kw softstarter but this soft starter will frequently failier so we planed to change dol starter. So pls tell anybudy its possible or not.

731


what will happen if there is a voltage leakage or current leakage in an electrical train

702


what is the purpose of bypass mode in energy lighting transformer?

1284


Can any answer me ,What will be the range of C.T coil for L&T energy meter EM301 used for 180 kva DG set

795


hi, in the event earth grounding is not available in a project, is there any other way to make the elcb work? fyi, i have an instant water heater (6.5kw) installed, however if there is grounding in the heating element inside the heater assembly, i will get grounded. thank you in advance to those who will answer my question.

751


what is difference between 5A and 100A CT constructional wise and operation?

1784


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

646


state the working of discharge lamp?

853