Electrical Engineering Interview Questions

What is the equipment used to control the generator output?

5292

What are the factors to be considered during the Synchronization?

4966

What should be value of Circuit breaker operating time and tripping time?

5715

Why the CT Secondary is rated as 5A generally?

6123

At which time Synchronous generator act as a Synchronous Condenser?

7674

What is the purpose of taking Capacitance and Tan Delta Test in Transformer bushing?

10784

What are the protections to be used for Generator?

7370

. Draw the vector diagram and condition for the following: 1) Dyn1 2) Ynd0 3) YnYn0

3317

What happens when the polarity changes in CT? Explain briefly?

6745

Explain the Term in CT Name Plate – Class: 5P10

27482

why the transformer is not operates on two phase?

2983

What is the difference between Class PX & Class X CT's

ABB,

21446

What is the purpose of lighting Transformer used in Industries for Lighting illumination? Its necessary or not?

25667

Why Motors are generally supplied with 3 core cables??? why not 4C??

14239

What size cable (based on voltage drop) is required to supply a 40 A three phase boiler if the wiring system is 75V single insulated cables installed in non-metallic rigid conduit 56m from the main switchboard? Voltage drop in the consumer's mains is 8V.

1532

Un-Answered Questions { Electrical Engineering }

How to protect a Dosing pumps/any sensitive equipment (single phase) from surge protection inside a food factory.

1321

Dear sir, iam completed iti ncvt electrician 2000-2002 & diploma electrical eng completed 2008-2010 distance education in rvd university, still i got B licences only but my working company want C licences, how to i get c licencese pls reply me iam in critical situation thank you karthick 9841637803

1321

What is the meaning of dedicated earthing?

1580

what are the types of electromagnetic forces developed in practical transformer?

2201

11 kg trivevter meter has rating of -/5amps. And pt ratio11000/110v and is connected with 11kv ct/pt unit of cr ratio 75/5amps. And pt ratio of 11000/110v while checking accuracy of meter with HT Accuchek meter what value of PT ratio and CT ratio to be filled in Accuchek meter

1289

How to calculate that clean water supply in one Day from 150 KLD STP?

1607

how does commutator convert a.c to d.c?

1807

How to set the relay,,??

1669

please send me previose rrb junior engineer qustion papers

1689

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

1243

Explain about Dubai electrical sysaem? Explain about Dubai drinking water system? Explain about Dubai Burj tallest building Electrical,Water.etc.. maintenance system?

1715

How to select transmission line type (i.e. 11kv or 33kv) for new established industries

1646

Define the three phase formula fuse.

1439

What is bode plot?

845

what will be d.g. capacity to cater together for 14hp A.C. load & 3kw lighting load

1601