Electrical Engineering Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

For my plant the electricity department charging some amount for t/f losses. May i know what are transformer losses

L&T,

1 3585

how to find motors H.P. whout any rating? (only give you a motor and multimeter)

L&T,

3 6244

In sub-station how to find multifactor of panel?

1 3630

the process cynide is used for?

MAHINDRA,

2 4806

fog produced due to?

MAHINDRA,

2 4781

cc of scorpio?

MAHINDRA,

2326

refrigeration cycle?

MAHINDRA, Shapoorji Pallonji Group(SPCL),

1 5271

what is the saturation point of crgo lamination.

2305

why substation are rated like 11KV or 33KV?

TNEB Tamil Nadu Electricity Board,

3 11883

how a DC clampmeter works if DC cant b step up r down?

1 3587

Phase control and integral control are used for?

NPCIL,

2398

What is the gain of 1-s/1=s at 1 rad/sec?

NPCIL,

3 7211

why does make gain margin and phase margin on same plot.?

2190

Q-1 what are the structural and operational difference between a distribution and a power transformer? Q-2 what is skew in motors? Q-3 draw equivalent circuit of transformer Q-4 explain with phasors how pf is improved with loading in induction motors Q-5 DIFFERENT METHODS OF CABLE LAYING(interviewer asked if i heard new chemical based earthing system next) Q-6 pi model of medium length trans line Q-7 v/f control?why Q-8 vacuum circuit breaker operates in?

Vijai Electricals,

1 5366

What will happen if apply dc source for power transformer

4 6705

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Un-Answered Questions { Electrical Engineering }

there is an alternator 480 k.w, 400v,50hz, 4-wire running on load having leakage alternator body earthed current 38 A. is it within acceptable limit? if yes then give reference if no then how to bring within specified limit

1982

I have two PLC processors. I want to communicate both processor with each other. How i can do so?

2215

Why 9KV surge arrester having 7.65KV of MCOV?

1633

1600kva capacity Transformers how the bucholz relay,Oil temperature,winding,surge relay relays setting are to be done

1960

how the characterstics of control valve being done

2149

star delta starter contorl circuit... drawing..

2147

In convertor can we use rectifier thyristor in place of invertor thyristor with explain.

1861

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

2262

What is Phase to Phase clearance for 800V System Operating Voltage as per IEC61439

1094

pls,send the previous year written test questions.

1969

WHATIS TIME CONSTANT? WHATIS ITS SIGNIFICANCE? ILLUSTRATE THROUGH EXAMLES.

2315

Which standard we are following earthing resistance test

1476

what are the major & minor faults that occur in an inverter and in UPS ? And how to repair and resolve them ?

2405

How to calculate MCB Breaking capacity.

1578

How 3 phase invertor works?

2130

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