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 power factor

Heidelberge Cement,

13 15312

what is the operating principle of contactor(power).along with disection?

NASA, Tech Mahindra,

3 17384

in india why we not use frequency above 50 hz for distrubuting power ?

1 4889

howmany types of compresor is there? and how to calculate compresor capacity?

3 5991

how to calculate generator capacity?(kva)

SMEC,

2 19475

flush point of transformer?

2 4663

Hoe to calculate body earthing conductor size ?

IES,

1 9819

how can alculate the apfc panel rating?

3 15118

why are using bus ducts ? why not using cables

12 48924

How to select circuit breakers rating eg. if i select a circuit breakers of capacity 40 amps DC with operating voltage 28 volts and if i what to use same circuit breakers for 300 Volts DC application what is the current rating of this circuit breakers.

1732

what is the defination of Cable database? What are the points are considered while preparing cable database? Is there any sample available for cable database?

1898

WE ARE PLACE A NEW 75 KW MOTOR FOR JPF.IT IS CONNECTED IN M.C.C. WHEN WE ARE STARTING M.C.C.INCOMER IS TRIPPED.THEN WE ARE CONNECTED IN P.C.C WITH A MM30 RELAY PROTECTION THEN WE ARE STARTED MOTOR WILL RUN SMOOTHLY.

2071

why the three phase transformer's star point does not sparks or seperated? while we often see that two phases touches each other it sparks and ocationaly conductor breakes out.

4 8604

Can we parallel two grid with different incoming voltage. Ex.let say one grid is 132kv and another is 220kv.

2 4847

GIVE CONDITION FOR MAX EFFICIENCY OF 3-PH TRANSFORMER AND D.C MOTOR

BARC,

2 7357

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Un-Answered Questions { Electrical Engineering }

how to decide the capacity of accl

2439

what is the maintaining Cf in UPS.

2356

For a 6.6kV Motor it is recommended to do megger test with 500 V d.c and not more than 5kV d.c but the Hi voltage withstand test should be performed by 12kV AC. Why the dc voltage test should be limited but AC voltage withstand test could be with such a high voltage?

2324

what are the advantages and disadvantages of oil filled cables over XLPE cables

19532

state basic meaning of 'INDUSTIAL AUTOMATION'?

1945

What are the conditions for sustained oscillator or what is backhouse criterion?

1145

Hi Everyone ! My Name is Hakim ullah khan please i need formula of Cable Rating because i want to calculate by self without check any Table Chart... Thank you.....

1716

How does a battary stores charge in it? please explain in simple manner and in detail.thanks

1983

# 4 hi friends i m from electrical branch and seeking for tech. + apti. both papers of hpcl plz get it available as soon as possible my email id is sumit_lig189@yahoo.co.in

2003

What mean by MLTP

3950

why moisture formation found in XLPE Armoured cable outer sheath

1817

why capacitance effect is predominant in underground cable transmission and inductance effect is predominant in over head line transmission?

3673

List of equipments required foe industrial repair lab.

1896

What is the function of the generator exciter?

1417

1.what is mean by 8/20 micro sec waveshape

2231

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