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 use of switch disconnector fuse

1 2857

How Humming noise generated in starter motor which was used the start the engine in a vehicle/car/Truck?.Moreover Starter motor was operated in DC power supply. Can you guys clarify ?

2 6767

what is the function of mccb?

6 29037

while grounding the galvenized metallic structures is it necessary to remove the galvenization at the point of contact? Or other wise is the galvenizatio a good conductor?

1 3572

Is there a diode made that works with AC 120 volt 20 amp? If so can it completely stop all current flow in 1 direction at all times?

6639

What are differences between Voltage, EMF & Potential difference ?

1910

how we can check new PT ? without name plate.

Indo Power Projects,

1 5102

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

1757

hii this is ranjith from hyd... i want to know what type of questions they ask in interview...and hw the interview will go..? what subjects thay ask specially for electrical engg students?

1920

what will happen when two dc motors are connected to each other and anyone of them rotated?

1 2418

why generally transformer are in star to delta or delta to star used?

ABB,

8 20557

What should be the voltage between neutral and earth of a UPS?

4 10494

while doing the excitation current test on power transformer what is the value of voltage to be applied? Nomonal rated voltage or 10% of rated voltage? Is it necessary to apply on high voltage side?

ACC,

1 5725

can someone explain that how the speed of the protection system affects the fault level calculation?

2022

In one village i have seen Earthing transformer's earthing line was also connected to the Transformer body to ground the transformer,can it be possible to maintain 0Volt reutral line this way?

2 5217

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Un-Answered Questions { Electrical Engineering }

In the N-series schneider reclosers. What is the difference between current during fault time and current at tripping? This appears in the Event log in an event of a trip out.

1803

TCS IS IT COMPANY THEN WHY DO THEY NEED ELECTRICAL &ELECTRONICS ENGINEERS?

1893

Can RCD's used to protect the VVVF drive if not why.

2091

Why LED light has advantage of rapid reflection ,although other lights alse reflect.? and this light is considered to be best for transmission usage in case of Free optics

2002

Could you measure voltage in series?

1192

I want formula to calculate current loss with distance in km.I searched many sites but didn't right answer.Plz reply me

2001

What is the difference between AC and DC injection methods for rotor earth fault protection

2153

Can 33kva/415v transformer be run underground? If the answer is yes why and if the answer is no why?

1524

what is the voltage between earth to neutral in lift.

1757

I am a electrical engg. diploma holder,applied for junior engineer (electrical),Kolkata RRB. Have I to attend all electrical,mechanical&civil portion in written exam.???

15571

how to select rating of HT Panel

1398

although ckt breakers have taken the place of old fuse. But instead of it , these older ones are still used in the industries and homes ? why .... what are their advantages and disadvantages ? which one is leading and winning the race and competition ?

1942

what is metering cum synchronizing panel and how it is used?

4575

In Electrical 'Single Line Diagram' cable nomenclature shows "2 X 1C X 630sq.mm to be provided for one incomer. The question is how many cable to be proved for one Incomer.

1709

How can we find the breaking capacity of a Load breaker switch (LBS) fed from 11 kv supply??ex:50KA, 26kA etc???detailed step vice answer pls.

1976

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