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 11kv and 13.8 kv? why we can't used one of these 2 sources?

2 6266

What is maximum rating of transformer ?

2 5998

What is reason of rating of transmission line multi pal of 11 like as 11/33/66/220 ? Why not use 75 kv 23 kv line in power system ?

Apollo, Balco, Bhel, Vardhman,

1 3411

what is the electricity

3 5392

IS THERE ANY ELECTRONIC CIRCUIT TO REDUCE THE NEUTRAL TO EARTH VOLTAGE BELOW 3V ?

1 3365

Dear All, In a 400V power system, ratio of three current transformers installed incoming switchgear is 4000/1. Maximum three phases short circuit current of this system is 48kA. One CT is installed on neutral of upstream transformer (6/0.42kV, solidly earthed) for 51G protection. Would you please inform me about the correct CT ratio of this current transformer (on neutral)?? Thanks a million

2 4660

ac and dc motor advandtage,disadvantage,aplication

Apollo,

2 5099

what would happen nif we increase or decrease the capacitor of a flood light.

1 3379

The gauge indicates the number of amps, but what about voltage? How voltage rating (for wire or fuse) determined?

1941

What will happen to magnitude of voltage of other two phases if one phasw will touch the ground?

Construction, NPCIL,

3 6032

What are the factors considered for the selection of cable?

NPCIL,

6 34989

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

2013

why distribution transformer are of DY11 type?

4 13569

how to check a three phase induction motor by multimeter & megger?

2 20086

Short circuit current of 2500 KVA 11/0.415 KV transformer both Secondary and primary side. best regards. Ali

1 3743

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Un-Answered Questions { Electrical Engineering }

are there rmu for 3 transformer?

1847

Explain the following and how these are working with PLC Unit 1 I/O Module Card 2 Adaptor Card 3 Ribbon Adaptor 4 I/O bus 5 I/O Devices

1586

What is the function of interposing current transformer?

1013

What is the method for testing the differential protection stabilty in generator? When the time of starting What will happen if differentail protection connection wrong means?

2240

what is under coal gassification?

2033

what is the reqirred voltage in HT motor to get full RPM on no load test?

2016

On a 6 KVA UPS we have to provide a DC MCB for Battery bank of 16 nos (12 V 42 AH). What Shall be the current rating of DC MCB ?

2589

Give details of your interested designation, the post you are interested to serve the company better and explain why you think you can serve the company better in such position if employed?

3301

I have two PLC processors. I want to communicate both processor with each other. How i can do so?

2114

What is lc oscillator?

1147

How phase to phase voltage comes 440V.

2039

1))why we run three phase or three different circuit from a single conduit 2)) why not two circuit of different phase run in same conduit?? and why we run same three cicuit of same phae run in single conduit??

2475

How can find thermal state value in relay for calculate thermal overload.

1868

How to dimensioning SDCCH, LAPD and CS7 signaling on GSM?

2648

Explain the process of commutation in a dc machine.

1001

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