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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

If a line which is drawing approximatly 2100amps what should be earthing streep size(using galwanize streep)?

2 3944

why the field winding of synchronous machine is excited by dc source

2 6514

WHY WE NEED NEUTRAL FOR 3PH 400 OR 415 VOLTS POWER SUPPLY (4 WIRE SOURCE).

5 9481

how make megger test for control cable like 12c x 1.5mm and what it apply voltage and test timing details.

2253

why transformer rating in KVA ?

Bhel, TATA, Voltage,

8 12680

testing ZNYn11(d) vector group transformer

1 9296

1.Why we use choke?If we use for high starting voltage then different type choke gives different voltage. Is it correct?

Dalkia, Luminous,

2 5715

which of the folowing has negative temperature coefficient of resistance? a. mercury b. copper c. lead d. carbon

2 8533

why there is no grow of grass under the high voltage transmission line?

TATA, Tata Power,

3 10160

is it possible to minimize the copper loss?

Coal India, TATA,

2 6011

what do u mean by PS-0.2-5P class of Ct

ABB,

3 9577

If there are two transformer having rating of 2.5mva, 6.6kv/440v(satr-star),and the load is 600kw then what is better to maintain less losses in transformer having both transformer in parellel or only single transformer connected to load? Please give calculated answer

UltraTech,

2766

How we can recongnise the phase displacement of transformer connection between primary & scondary...plzzz explain it with example.........

BOC,

2555

What consists of 2 or more thermocouples to be connented series?

2372

what is the use of commutator in dc motor if we supply ac ? commutator is used to convert ac to dc.and it is used to arrange the flux in unidirectional in case of dc supply. if we give ac as supply to dc motor what is the use of commutator?

2129

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Un-Answered Questions { Electrical Engineering }

can i able to get bhel previous exam question paper?

2138

Pl. brief about break-down maintenance of machine tool.

1855

Load transfer in 11kv double busbar switchgear - operation.

2005

what is the criterion for selecting vector group of Transformers ? i mean how to decide vector group of Generator transformer, substation trasformer and transformer at consumer end

2412

700KW 6.6KV slip ring induction motor to use VFD to control the speed

3249

what is 400kv doble circuit quadpole tower?

2004

What do you mean by an instrument transformer?

1143

WHAT IS counter flux IN CT?

1993

what is mean by descripiency relay? & wht is its ansi code?

3208

single phase power supply give to separate one steel coup with water, what reaction create

2133

what is the IPC ? & what the uses ?

1549

what is kondo syatem in eletrical traction

2232

why the perameters of secondary circuit are more important then that of the primary circuit of induction motor?

1960

What is the formula for calculating impedance of transformers connected parallel at fault level 50KA?

2150

please anybody help me to find out the BHEL trainee Exam previous year questions papers . if u ve pls. send it to surekhared@gmail.com

2013

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