Electrical Engineering Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

why is the core of the underground cable is spiral in shape instead of straight?

Mecon,

8 10064

what s the differenc between electrical &electronis , how to define them

9 10975

how to define tell me about self

Bhel,

1964

Can anybody explain Why starters are not used for motor starting in industries?

9 11140

WHICH IS BETTER( FOR POWER SAVING)- ON LINE OR OFF LINE UPS ?

Punjab National Bank,

3 8953

If connected load of Asphalt plant is 375Kw. What suitable KVA DG set is required. What is calculation formula. what extra load have to consider. in what efficiency it will work.

MAHINDRA,

8 17631

what is the suitable voltage of transmission line to transmit 10000w power through 250 km. (a)11kv (b)33kv (c)66kv (d)132kv ]and please tell me whats the logic behind it

ONGC,

7 21054

tell 2 reasons for why only copper is used in domestic wires& only alluminium in transmission lines ?

ABB,

10 17472

what is reactive power ? what its role in transmission lines?

Thermax,

3 12614

Why we are mostly using a single 3-phase transformer instead of three 1-phase transformers?

7 12276

what is the diff. b/w restricted earth fault relay & standby earthfault relay and where they are used?

KSK Energy, Reliance,

4 72108

WHY WE ARE EXPRESSING KW-HR AS UNIT OF ELECTRICITY.........?WE CAN EXPRESS IN ANOTHER UNIT.....?

Summit Power,

4 7982

why current increases when voltage decreases in ac system

10 28029

How does a star connection and delta connection work? How does the star connection save starting current and how does it change to delta?

3 12374

how much loading in terms of ampere can put on 5 MVA,33/11 KV TRANSFORMER having rated current 263 Amp ?????????

ABB,

11 36985

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Un-Answered Questions { Electrical Engineering }

List the power rating of any 5 important electrical appliances used in houses.

1994

What is the Resposiblity of Electrical Utility Engineer

2893

i m in need of current rating chart of heavy duty pvc/xlpe, cu/al cables. can somebody provide me? if yes, plz send me at ashish_patel111@yahoo.com

1979

What is the Difference between Ac Drives and Dc Drives? According to application, speed, Torque, cost, Reliability, Construction, Motor etc... Thankyou !!!

2142

Two electric lamps 40 W, 220 V each are connected in series across 220 V. What is the power consumed by the connection?

1369

what questions will be asked for 11/33KV licence interview APSEB hyderabad. Can any one share question and answers.

18392

What is the fault or needs to be done when frequency in ac drives is not changing?

1612

how was your last weekend.

1757

how mass curve differs from hydrograph.

1733

what topics we have to concentrate for power grid et.written test.and tell what to read for english synonyms and antonyms.

1905

why is the conservator tank painted white on the transformer

3143

What is the need of generator relay panel

2040

what is the transformer turn ratio formula and give some examples?

2398

I have 2500KVA transformer delta/star,13.8KV/380V provided with LV 4000A breaker. Already I have 2300KW motor feeder with a full load 90%. Is it possible to connect another 1600A from that breaker? If so how the calculation is done?

3771

What is meant by bus bar protection?

1116

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