Electrical Engineering Interview Questions
Questions Answers Views Company eMail

is it possible to test of bus bar in high rise building without completed full floor ?

1146

How to check it good or bad capacitor

IMD, ST,

4 4262

electricity bill multiplication factor 487.20xconsumption=total unit in kwh. what is 487.20 ?

Spec International,

1 2230

what will happen if i will done heart shape hole in transformer core?

Bhel, ONGC,

1 2934

How do apply electrical 'c'license......pls advice

1237

Advantage of earthing transformer

EID Parry,

2 2652

what is the calculation of power factor?

GATE,

4 3413

Which device is provided as backup of Buchholz relay???

Indian Railways,

2 3599

IDMT relay are mostly used for protection against..??? 1)Earth Fault 2)Inter turn fault 3)Overloading 4)None of the above

Indian Railways,

1 2246

should dc supply will give the transformer to build up the voltage level

1 1695

Could Please Explain briefly. Why used stabilizing resistance series with High impedance bus differential protection relay.

NCC,

1246

any one guide me to reduce the power factor of diesel Generator from 0.97 Leg to 0.8 Leg.with out any change in my load.

1179

how to calculate cable size with respect kw

SPMI,

1264

How much inductance or resistance require as a starter in series with induction motor of specific capacity(e.g. 5 hp) ? What is formula for it ?

Reliance,

1466

sir i completed apprentice in TNEB.apprentice is eligible for 'c' licence

Bhel, TNEB Tamil Nadu Electricity Board,

1620


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Un-Answered Questions { Electrical Engineering }

why we are using earth pit in sub stations.?

1535


how can i reduce sparking without stepdowning the voltage

2056


how balanced in star delta connection ?

1593


how single phase preventer works ?

1994


Explain about Dubai electrical sysaem? Explain about Dubai drinking water system? Explain about Dubai Burj tallest building Electrical,Water.etc.. maintenance system?

1629






how calculate the electrical load for industry and office

8301


How does the slip regulator works as a startor

1477


What is the effect of interchanging core(made of steel) and winding(made of copper) material in case of transformer? Give proper explanation in regard to different losses in transformer.

1406


What is power relay?

758


Please brief what is sinewave

1695


What is the function of NER and NET?

1989


What is the requirement of grounding the neutral of single phase generators on load? If the neutral is not grounded, what will be the effect?

1597


what are the installation procedure of high voltage power transformer,CT,CB&PT?

1584


what are carbondioxide and dcp used in fire extinguishers

1617


What is different between Difnit time and instatous over current relay

1953