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 should be the minimum and maximum ohmic value for earthing?

2 5957

As per the theory current doesn’t flows in Neutral, but practically it is not applicable, explain why?

2 5094

What is the Frequency while we step up the voltage from 220V to 11KV? Is it possible? Explain it?

6 9805

How to take the Vector Group Test in Transformer? What is the purpose of doing Vector Group Test?

3 7673

Why the transmission lines are in 11kV, 22kV, 33kv, and why not 10kV,20kV, 30kV?

Bhel,

2 7607

Why do we generate 3 Phase AC Supply? It is possible to generate 4 Phase and 5 Phase explain it?

4 10216

Explain why the Voltage drop will happen in 3 Phase line?

3 7576

What is the equipment used to control the generator output?

3 5846

What are the factors to be considered during the Synchronization?

3 6810

What should be value of Circuit breaker operating time and tripping time?

5 14889

Why the CT Secondary is rated as 5A generally?

2 5814

At which time Synchronous generator act as a Synchronous Condenser?

1 6507

What is the purpose of taking Capacitance and Tan Delta Test in Transformer bushing?

2 7956

What are the protections to be used for Generator?

3 6181

Draw the vector diagram and condition for the following: 1) Dyn1 2) Ynd0 3) YnYn0

3622

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Un-Answered Questions { Electrical Engineering }

How can we calculate the motor frame sizes?

3376

Can a generator runs after getting 1st stator earth fault.

1366

explain which quantities change in the starting and the and the running condition in induction motor

1389

Explain the functioning of diode?

1031

Name two types of electrical analogous for mechanical system.

1171

How will A Medium voltage circuit breaker(11 kV voltage level) operate under short circuit fault condition whether It is having short circuit release like Low voltage circuit breaker or relay should be given?

1895

What is PQA???Applications........

2317

what is the interrelation between voltage current torgue speed and magnetic flux in case of different types of electric motors

2042

what is method for testing CT

2106

Is it possible to measure correct value of earth resistance & cable insulation ristance with out disconncting earth lead & both sides of cable ends? If not, any other method to measure ER & CIR with out disconneting from the system.

2066

What is Harmonics how it is produced and what is the method to control the same

2226

What is creepage distance..... what will be the value for different voltage level

1938

which protection used in power plant?

1901

when generator short circuit condition, the current how dissipates. or at short circuit voltage not available then current how can flow?

2158

Disadventage of cable-gland earthing if any ?

2181

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