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 buscoupler adopter panel????

5 9994

What is Exact meaning for Full load Efficiency and Maximum Efficiency of Transformer? Is there any Difference between? If yes ,please provide with formulae?

Techno Labs,

2 11479

What is the function of an exciter in a generator?

3 15448

What is an exciter and how does it work?

FCUK, Lotte Chemical Titan, TATA,

7 93627

What is the difference between MCB & MCCB, Where it can be used,

ACB Group, Badve, Bajaj Electricals, Hensel, Siemens, SR,

22 144832

What is encoder, how it function

Coca Cola,

9 54306

what r the checklist while installing a 380 kva DG set

Pepsi,

3859

what r the checklist while installing 500 kva transformer

Pepsi,

2401

I want formula to calculate cable size as per load given in kw & amp.I searched many sites but didn't right answer.Plz reply me asap.

Armco, BEL, BGS, Biocon, BRB Cable, Crystalline Chemical Industries, DLF, Doshion, Electrical, Gold Roof, L&T, Lanco, MEIL, Oman Cables Industry SAOG, PK Services, Polycab, Sabic, SLV, System Electrical, Tata Motors, UEM, UMIC, Vega, Vertex, Voltas,

41 423649

what happens when a power transformer neutral earthing broken???

MacLellan,

11 23555

what is power factor? whether it should be high or low? why?

11 17497

what are the various types of earthing? plz give brief detail of all. also post pictures if u have.

Aster Teleservices, Era Infra Engineering, Micron Electricals,

22 47708

what do u mean by bus bar?

6 12714

what is the relation b/w KW and KWH? plz explain with example.

FAG,

6 13960

what is the principle of operation of synchronous motor and generator? explain in detail.

Maruti Suzuki,

2 6407

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Un-Answered Questions { Electrical Engineering }

3 phase induction motor connection star or delta while using ac drive motor is .75 to 5.5 kw

2025

Please explain me about Relay curves and their sources to read ?

1864

In a power conditoining unit (inverter) of a solar plant when we measure the d.c. current fed by different strings of solar plates to inverter, the current in the negative wire is less almost by 1 ampere to the current in its positive wire say current in positive wire 5 A , then current in negative wire of the same string is 4 A. Since the current entering should be equal to current leaving then why the current is noticably less in negative wire.

1664

what mean by analog ,digital,numerical meters and relays? say the example?

2339

Logic using 1 kV or 1,1 kV grade in house wiring Low voltage cable. Explain/suggest? some use 1kV and some prefer 1.1kV grade insulation low voltage cable why??

1709

What is the use for cable entry in control room?

1215

what is JE exam?

2245

WHAT IS THE MEANING OF BALANCED / UNBALANCED IN STABILIZER TYPES.

2715

What is pi controller?

1251

Convert a star connected network into a delta connected network.

1178

how to find the multiplication factor for digital energy meter and analog energy meter

2262

what is the affect of earth's magnetic field on the frequency used in aircraft???

2067

Draw a block diagramof Three UPS systems connected in Parallel mode?

2226

How to calculate total harmonic distortion level(THD) in VFD? and how can we reduce harmonics?

4125

Pls mail me utility & Dg related question with answer

1851

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