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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

Is corona effect occurs in Induction motor. pl. justify the answer.

KPS,

4 9180

Why consumers are charged based on Kwh basis why not on Kvah basis.

Unitech,

4 10291

One Township having 850 house and each house load is 2.2KW single phase & 5HP 3 Phase motors of 10 Nos .Who can calculate 11 KV transformer capacity .dilip_bhasker@yahoo.co.in

1 4425

What must the distance between two MV cables be when they are laid on tray?

2303

What should be the amps for a MV fuses for transformer 630kVA 20(10)/0.4 kV

2107

WHY IS HV WINDING OF A TRANSFRMER SECTIONALIZED???

3 6541

Explain Active power,reactive power,how its related to each other , & inductive ,capacitive.

1985

what happens when power factor leads or lags to electical or home appliances

2 6478

any one can explain the stages of a knee point which is taken during ct magnetising curve.

Tata Steel Limited,

1827

what is V=4.44FBN, THIS 4.44 ONLY U GOT the voltage in term sof 11, 22 etc this 4.44 u will get from form factor which has a value of 1.11

1 3549

sir, is there any ratio,this much of A.C volt is equal to D.C voltage

3 6523

what is die electric strnth of transformer ?

2252

1)we have 1000 cfm Blower,Dia-1Mtr,Velocity of air 94 m/s 2)We have Natural Air velocity 94m/s 3If i Put Wind Mill in natural air ,speed is 94m/s Then it will generate Assume 100kw 4)If i put same wind mill across the Blower,air speed is same 94m/s now the Question is Will it generate 100 kw?

2055

working principle of induction motor is similar to transformer. but what makes it to rotate? then why the transformer doesnt?

4 12502

the input mechanical power of a single alternator is increased,its RPM increased but in case of an alternator synchronised with grid its RPM does not increased with increase of input mechanical power. why?

Bhel,

3 8857

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Un-Answered Questions { Electrical Engineering }

how can motor both beasrings insulation resistance can be check?

2081

ELECTRICAL ENGINEER TEST IN FEWA ANY ONE HAVE KNOWLEDGE ABOUT THIS?????????

1095

pls tell me about ups internal connection & we have given only 3 phase supply to ups system how get 4 wire (R Y B N )

2811

we have provided 30 nos. relay contacts in panel.I want to know how do we do the numbering for the relay contacts as per any applicable standards

2057

What is float cum boost charging system?

2112

why don't we use the generator as a motor? and what will happen?

1940

how to find the voltage's of a transmission line plzz help with pictures i am not able to understand

1430

What are the advantages and disadvantages of closed-loop control system?

1245

what is the usage of microcontroller in the panel board?

2143

Define ohm’s law for a.c (alternating current)?

1099

Classify drilling machines.

1212

how does ELR works? explain

2779

USE OF 8 WAY PAN ASSEMBLY

2032

In Power Line Communication (PLC) the wave trap is used to block communication signals from entering neighboring lines. My question is this: Why do they allow for different filtering arrangements on these wave traps? Isn't it always going to be a low pass filter since we want the power frequency to go through, and the comm signal blocked?

2037

what is difference between earthingpits,earthing grid & earthing mess?

2560

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