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 10303

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

9 11242

how to define tell me about self

Bhel,

1999

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

9 11404

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

Punjab National Bank,

3 9072

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 17891

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 21309

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

ABB,

10 17783

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

Thermax,

3 12747

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

7 12506

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

KSK Energy, Reliance,

4 72383

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

Summit Power,

4 8186

why current increases when voltage decreases in ac system

10 28333

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 12513

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

ABB,

11 37286

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Un-Answered Questions { Electrical Engineering }

-What shall be short circuit current of LV switchgear for a 1000 kva, 11.415kv, 3 phase tranformer with 5% reactance.

2132

what are safety measures in /control in diesal engine/ explain them?

1789

what is the difference between Power and Distribution transformers ?

2155

What are the three constants associated with a steady state error?

1218

how we provide neutral earth on synchronising panel as per electrical standards?

2096

What is the meaning of utility ground and clean ground? How the distribution panel is grounded?

2543

Can we use Ccapacitive voltage transformer directly for metering purpose?

1863

how is capacitor bank look like

2405

How cable from Kit-Kat to main switch, from starter to motor are designed?

2112

i have done diploma and btech in EE and live in Chandigarh so kindly help me how can i make my competency certificate in my area.

2216

what transformer we used normally and upto which kva?

1949

What are the criteria shall be considers for sizing Fuse and MCB? If the rated current is 10Amps what should be the fuse size / MCB Size?

1637

What is bode plot?

1244

i want use the cable size 16cx4 core aluminium usege watts 240x2000w this cable size is correct?

2203

If more than rated DC voltage appears across trip coil of the breaker, what will happen? e.g. in 110V DC circuit system, if voltage across battery terminal showing 121 V

1659

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