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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

how to convert kw in to unit

5 8227

how does the harmonics enter into the induction motors?

1 4119

define briefly the function of an ac electric generator (alternator)?

1 5029

Hi friends I am a service engineer in electrical field i plan to shift design engineer in same field, so i request your suggestion for what software or course i want to learn ?

5 7356

WHAT IS THE USAGE OF Buckoltz relay IN POWER TRANSFORMER AND AND HOW ITS FUNCTIONS?

3 6459

How the PF control while running DG set with load

2180

why some time Railway Fan not Rotate,But after a small rotation by human then it rotate normally? Why?

4 7275

what is the relation between reactive power and power factor for the what is the limit of reactive power and power factor

2103

what is the difference between electrical & electronics?

JSW,

4 9253

Whot is the difference between MCB and MCCB.Whot is the selection critearea for MCCB and MCB for 63 Amp.

5 9525

How does flights get the neutral(grounding)

1 4464

Whot is the braking capacity for MCCB. How we select different braking capacity.

1 3921

For refrigerators the motor current is raised beyond its rating on both conditions when the voltage of the system is more(say 270v) than the rated voltage(220v) as well as when the voltage of system is less(say 160v) than normal voltageof 220v, why explain?

Electrical Tech, UPSE,

1973

length of 4 core cable 95mm from substation LV VFD panel to Motor at field approximately 150 meter. Motor stop and power has been isolated from LV MCC ( Substation )to disconnect Motor for services. After Motor completed service propose to reinstall and reconnect Motor Cable, found earth cable sparkling during touching at metal / motor body. Inspect by clamp meter found earth cable have current flow AC 1-2amps and all earth cable at MCC LV also have current flow as same value. why it is happen?

2 6105

what is ring system ?

Bhel, Sabic,

3 6584

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Un-Answered Questions { Electrical Engineering }

In which of the following case, the rotating magnetic field is reversed? A regenerative breaking B plugging C dynamic breaking D forward motoring

1970

how is the incoming cable size calculated for a given current rating of a panel??

1935

how to store the thunder power?

4488

What is the numerical quantity of sqcm?

2031

what is the meaning of number in (11, 31, 61,14, etc. CDG11, CDG31, CDG61, DDT32

1446

Where is the best place to mount distribution panel in a house.

2094

what is the difference between unarmoured & Flexible cable? How to identified?

6212

What is the difference between single core 2 wire and single core 3 wire system? Which application we are using this? and for What purpose we are using this?

2348

is it necessary to earth the rmu before cutting off the transformer winding?if yes why?

1933

how we can explain arc heatng?

1939

Define resonant peak?

1145

I have 1500/1A CT If i connect this CT in 6.6KV bus bar means what will be the voltage present in CT?

2004

How to calculate flow of water delivered by pump when pressure & size of pipe line is given

2298

is that any software calculator to calculate the size of cable

2353

exolain the star delta connection

2678

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