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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 10584

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

9 11561

how to define tell me about self

Bhel,

2055

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

9 11687

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

Punjab National Bank,

3 9185

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 18194

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 21579

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

ABB,

10 18074

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

Thermax,

3 12906

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

7 12742

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

KSK Energy, Reliance,

4 72656

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

Summit Power,

4 8376

why current increases when voltage decreases in ac system

10 28652

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 12643

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

ABB,

11 37714


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

How can we design a HVAC Plant room which includes AHU,FCU,Chillers,Cooling towers, Pumps etc & how will they work? any Drawing if possible?

2398


why electronic instruments is more favorable than electrical?

2024


If Polarization index of motor 8.75 at 500volts of medium voltage 4.16 KV motor what this mean winding good or bad pl answer if any reffrence book give me the link

2169


How can calculate the rating of a servo stabilizer for given a specific load

3574


What is force on a conductor in a magnetic field ?

1145


How does HT work & Voltage required?

2337


why you don not show protection and type of isolation in key single line diagram?

2038


Why let through energy not considered for ACB breaker while cable sizing?

2474


transformer spections :: input voltage 0-110-230v; output volage 0-10-12-14v; amp=3A using CRNO CORE, capcaity=50VA primary turns = ? ; secondry turns =?

2152


The efficiency of a 100kva transformer is 0.98 at full load as well as half load , for this transformer what is the Copper loss at full load ?

2381


what is the principle of operation of CFL ??

2721


Whether amorphous core transformer is commercialized or not:Name of company making amorphous core transformer and what are different rating?

1857


plz send me HPCL apptitude paper.. maulik_elect@yahoo.co.in

2146


Write the force balance equation of ideal spring element.

1317


What is excitation in case of dc motor?

1229