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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

why to use 50hz only in tansmisson and as well as in distribution why not60hz?

2 4433

In a overhead system why the voltage between line &ground is taken for basic comparison ?and in case of underground cables the comparison take only by the voltage between cables?

L&T,

1 4016

how dc generator produce voltage initially?

Bisleri,

1 3674

the single phase voltage is 230 volts and threee phase is 430 v.why three phase is not 660 v?

2 7836

which relay is used for both detection & correction?(there is only one relay)

2 4654

the 230 value of voltage which is use in our home . is that value is rms, aerage or peack value of voltage?

L&T,

5 9018

wath is this mining of bts

Nokia,

2 4895

wath is this mining of dg

Nokia,

2 4535

wath is this mining of bts

Nokia, TATA,

1 3314

WHAT HAPPENED DC SERIES MOTOR FIELD WINDING OPEN. CAN POSSIBLE.

1 3906

What are HT & LT Cables? What are their values?

IOCL,

3 6628

What are armoured cables?

IOCL,

2 5029

What are the layers of protection over armoured cables?

Accenture, IOCL,

3 5707

What are insulation classes? Tell examples of each of them.

IOCL,

1 4009

What are the different types of circuit breakers?

IOCL,

3 5963

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Un-Answered Questions { Electrical Engineering }

what is maxemo work permit procedure

2201

mention hazard experienced during installation

1979

On a 3 winding transformer YNynd11, how do you apply REF protection to the Delta tertiary winding that is supplying auxiliaries to a substation?

4376

3 phase Motor will be given 2 phase after 2 to 5 second we given 3rd phase so Motor Run sum-time in forward or sum time run reverse direction. All time phase sequence is not change. Why motor run in reverse direction? Please Explain........

1962

How to calculate Air conditioning capacity for a telecom BTS shelter?

3513

plz explain the auot-reclosing circuit in electrical engineeing

2484

how the speed of the gets motor regulated. does it draw the same current on the all speed level.

1996

we have two generators different capacity on 15 MW and other 6MW at 11 KV , 15 MW gen. bus short level current 40KA,and 6MW short level current 25KA,, length of cable 100MTR between 6 MW from 15MW gen. for bus coupling . kindly tell any one can we use both NGR OR one NGR from any GEN. BOTH NGR has diff. rating. Tariq pakistan

1679

CT Ratio of a energy meter connection is Red Phase : 100/5A, yello Phase : 50/5A & Blue phase : 100/5 A what is the overall Multiplication factor

1653

when the time of backcharging the transformer three phases only enough or three phase with neutral is must.from these which one is the best one.

2043

what types of electrical & mechanical test conducted in switchyard?

2233

how solar power plant energy meter multiplication factor

2104

STATE WORKING OF VACCUM CIRCUIT BRAKER?

1925

What is the difference between diode and a transistor in terms of the direction of current flow?

2215

What is deference between MCB & MCCB & ISOLATOR

2119

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