Electrical Engineering Interview Questions
Questions Answers Views Company eMail

On what factors the generating voltage depends ? Generating voltage are (3.3kV, 6.6KV , 11KV, 13.8kV) Why so ?

Bhel,

5 8434

HOW WOULD YOU PRESENT THE POWER FACTOR PRACTICALLY ON A GRAPH

Bhel,

4 6924

Hi I'm doing my MBA(3rd semester).I applied for the post of ET conducted by BHEL the last year.I cleared the written and lost in personal interview.Again I wrote the exam this time and cleared the written n yet to take the personal interview.Shall I disclose in the interview about my studies.What shall i say if they ask about my change from studies to job

Bhel,

872




what is pole slip ?

NTPC,

4 15392

what are the types of sus station ?

NTPC,

13 14550

If current flows through conductor it produce magnetic field only.but if current flows through vaccum both magnetic & electrical field produce why ?

NTPC,

4 3260

Dear sir/mam Iwant complete details of Naintenence of 33kv/433v Transformer having 1250 KVa

1 2117

Hi, We facing one similar problem in our computers i.e we are newly constructed our design department after that shifted our computers but our computer desktop screen is vibrating. we are conducted our electrical maintainance person he told that is UPS problem, then we changed the UPS also again we are facing that problem in that room only. then we put lcd monitors that problem is solved. But in other monitors why the computer desktop screen is vibrating please give a suggestion to me. Regards, Raju.N.G

10 4730




In DC motor,the field MMF is given by NI.N-no.of field winding turns,I-excitation and both are constant.Then how could the main flux decreases due to armature reaction.

IBM, Bhel,

4 6107

How to do bus bar short circuit calculation for 230KV/11kv, 60 MVA Substation?

ABB,

3410

Why does the power consumed is always constant even if a fan speed is altered?

4 4200

how much insultion resistance 11kv cable.

3 4001

how much insulation resistance 11kv & 33kv under ground cable between earth to phase & phase to phase.

Siemens,

4 18007

Formulae for calculating the transmission line losses for different voltage levels

818

Re: can you give main difference between ELCB 2pole And RCCB 2pole? And how this devices operated?

4 5025


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Un-Answered Questions { Electrical Engineering }

Explain Continuous and Discrete signals?

457


we specify current in case of feeder but in case of distributor voltage, why?

574


acb(AIR CIRCUIT BREAKER)NOT CHARGING AUTO

893


we are having 15kw and 3kw motor both can run in same time , instead of using copper we are using ug aluminium cable , 35 sq.mm is suitable for its current carrying capacity..?

496


pls tell us AC plant are how do work and parts name with picture

676






what is mean by NPS (Negative phase sequence)fault? what is the difference between EFR & OCR faults?

899


what is the practical application of full adder circuit?

664


what is upper impedance and lower impedance of a distance relay

831


why co incidence factor considered in transformer sizing?

651


In Power cable specification what is U0/U and Um.

1945


when we gave dc supply to 220v dc motor its rpm is 1200. then we gave 180v. how many rpm of its motor. gave answer with calculation at my ID.... ravizak@ymail.com

864


how to measure earth resistance of a substation

1744


if there is nutral in phase why we use earthing wire and grounding? even at fault condition the fault current flows to neutral (it is a lower path)

578


What is distance between electrical panel to land ?

97


In ht capacitor ckt we are using LBS Panel it having isolator with fuse, one of HT fuse flash over, so what is reason behind this event.

786