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 the difference between RMS & TRUE RMS VOLTAGE

IIT,

2890

Difference between MCC and PDB

BARC, CDS, NINL,

3 24709

What are the classifications of heating element?

BARC,

1996

Why control of DC motor is simpler?

BARC,

2390

What is servo motor and what are the applications of servo motor?

BARC,

2660

What are the role of each components in PID COntroller

BARC,

1 4105

why transformers rating are in KVA

5 8204

what is the path of electron when a static electron is placed in a magnetic field?

1 3528

Which one is more accurate servo or stepper motor and why?

BARC, HPT,

2 7541

coil is consist of

Enercon,

1 4393

what is is the potential diffrence between two phase ?

Bhel,

3 6302

why there is no short circuit when any resistance is used between phase and neutral?

3 6813

Any one can explain if there is any harm from humming noise heard from air circuit breaker : we have 415 switch board having two incomers from transformers 3.3KV/415V , when bus coupler closed, and open one ACB incomer to work in one of the transformers, the current started hunting around 50 Amps, and heard humming noise from the air circuit breaker, although the load current was only 1200 amps while the ACB capacity is 2500 Amps, and the transformer 1600 KVA. The same didn't happen when taken the other transformer offline. Why this humming noise and current fluctuation? is there any implication or danger, bearing in mind that we just returned everything back to normal and stopped the maintenance of the transformer. Shall we go ahead and ignore this noise?

6 12725

what happens when the transformer is connected to DC supply?

4 12872

when will cause the negative sequence falut in electrical system?

Schneider,

2 7077

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Un-Answered Questions { Electrical Engineering }

Draw torque - speed curve and load curve of induction motor? mark operating point ?

2015

In the Variable Voltage Variable Frequency Drive, how the Voltage and Frequency varied ? Is it varied in the Inverter part of the Drive ? Please give us supporting document if any.

1919

1.4 What is meant by CT knee point voltage and how would you determine it

1650

how can we design robots

1916

What do you understand by external characteristics of a d.c. Generator?

1075

What is main cause of cable's terminal point burned in Lug on high temperature although lug and cable selection is ok as per stantard and also tightness is ok as per situation. so please take in deep and tell correct answer thanku.

8204

What is the Minimum winding resistance of motors ( small & big)? referance range

2272

block diagram of 2 ups system connected in parallel mode?

2047

Use of switch mode power converter in real-time basis?

1123

what is mean by parallel operation of permanent magnet generators

1955

DEAR SIR/MADAM,CLEARLY EXPLAIN ABOUT CRAWLING AND COGGING EFFECTS IN INDUCTION MOTOR.

1934

which is the best institute for PLC,SCADA,DCS in hyderabad

2318

why cable i burning without tripping. how can protect led street lights

1524

What are test signals and their significance?

1095

how you taken aotitude test

2444

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