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 maximum or Threshold value of current 7 voltage that a common man can withstand

1 2724

how to prepare PPM schudule

TATA,

3 5906

what does the regenerative braking mean?and how it used for Dc motor? thanks.

2 6880

would the same effect be achieved by reversing the connection to one winding of the induction motor 3-phase?

1816

Describe the control mechanism of missile launcher???

DRDO, ONGC,

1973

If ac 230volts inputsupply to full wave rectifire what is D C output voltage.

3 5646

we can stepdown the voltage from 230/12v ,and we use the voltage for various electronics components why can't we step up the voltage from 12/230v if we can shall we use the voltage for domestic single phase supply

Areva,

5 9094

A 11000/415V distribution transformer is fed 415V upon it's LT side,Do I get 11000V upon it's Primary side ?

7 14336

For having nonavailablity of 10 Amps fuse, a lineman replace the same with 5Amps two strand, Do he correct ?

4 6767

What is the difference between Analogue Addressable Systems and intelligent Addressable Systems

1 6069

at the time of starting back emf of a motor is zero.so how can it will start to run??

1 3845

why we have to do tan delta test of the transformer oil???

5 18345

How to choose primany and secondary side MCB

1 2958

why firewall is build up between two transformer (220/11kv,50MVA)?what should be the firewall height?what is the clearance between firewall and transformer?

Siemens, Tous Stadt,

2 17799

In a Synchronous generator, Can AC voltage be used instead of DC voltage in field winding of rotor to produce AC power?

NTPC, Windia,

10 19458

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Un-Answered Questions { Electrical Engineering }

what are the applications of PLC?

1974

What is the power factor of an alternator at no load?

1337

What are approaches to tackle sedimentation problem of reservoir?

1018

If VFD is On but no starting commond on it. so how many outpout voltages of VFD

1153

When and where resistance earthing is used ? How to calculate the time constant for earth fault

1816

Installation resistance for whole installation of 16 kva & 25 KVA DTRA a) Between each conductor b) between conductor to earth c) installation resistance for each apparatus, each conductor to earth d) earth resistance for the system of earthing

1920

Can any one provide the inspection procedure of MIMIC for VFD panel? Details: If someone wants to have a mimic in the VFD panel what are inputs considered for the mimic(like on,off,trip) whether we are able to add speed variation in the mimic(if so how can we get) and what are the parameters to be checked in the MIMIC during inspection?

2195

how many joints are allowed in underground HT cable of 1 KM

1878

Explain the operation of variable frequency transformer?

1138

How to Calculate the Fault Level of Electrical Installation

2265

WHY TERTIARY OF POWER TRANSFORMERS IS LOADED WITH EQUIPMENTS LIKE CT,PT,ISOLATOR AND CB

1907

Vaccum circuit breaker

1390

sometime battery charged and then automatically charged when rectifier ON conition, is there any chances please clarify the same.

1895

How the annunciator works ? How to do its wiring

2302

Igfet is a

1639

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