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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

in elevator industries , how to calculate the required KVA for the elevator (elevator spec- 40A module , motor of 13.5KW, 20A)

DLF, Tata Steel Limited,

1 13626

why the stator is not laminated in DC machines?

4 16112

I am abt to give IOCL intrv.Plz sir guide me for IOCL intrvw (Electrical).Which subject to be consider. questions are generally asked from which subject.Plz help me out.

IOCL,

1959

if we convert kw into kva,which one formula use by us,pls tell me?

ABB, AEC, BGH,

19 27353

if we convert watt into kva,which one formula use by us,pls tell me?

ABB,

16 22288

if we convert Ampers into kva,which one formula use by us,pls tell me?

ABB,

10 13596

if we convert kw into Ampers,which one formula use by us,pls tell me?

ABB, Essar,

9 14034

if we convert kva into Ampers,which one formula use by us,pls tell me?

ABB,

7 11373

if we convert ampers into kw,which one formula use by us,pls tell me?

ABB,

11 19509

How to decide and select the different earthing wire size for the different types of earthing

Suzlon,

2233

What is the safety factor is to be consider while selecting the switchgear and protection for electrical system

1 4514

Input power is 380 - 450 V but with 45 - 55 Hz frequency - desired output is 415 V and 50hz with 1% variation permissible. CVT / Servo dont stabilize the Frequency - what is best solution??

IOCL,

7 10859

What is transformer saturation?

1 4133

every motors written in name plate IP 55 what is this?

2 26917

what is general test conduted by transformer

Wipro,

8 13859

Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

how does a shunt reactor maintains the bus voltage???

2023

how to calculate the step resistance for slipring induction motor,how you deside the no of step for that?

2175

hey guys i scored 910 on GRE and 67 on TOEFL respectively.I have an aggregate of about 74%in my B tech.For which colleges should i apply for an MS program in electrical engineering.I am looking for colleges in NJ,SC,NC,GEORGIA, NY. Please reply with a good response.....

1923

"TRANSFORMER MODELING AND ANALYSIS" MEANS WHAT AND WHICH TOPICS U READ IN THIS

1846

What is the effect of positive feedback on the stability of the systems?

1058

How to test lightning Arrester?

855

Draw a circuit diagram in which if button is open we can use socket and bulb as a series test circit and if button is close than simple we can use socket as any load purpose.

1830

Define de-sensitivity?

1098

is it possible to test of bus bar in high rise building without completed full floor ?

1647

What will be the size of copper cable (each for 3 phase and 1 neutral) from Service connection Kit-Kat to Panel Board (i.e. to main switch) for a 6 pole 3-phase AC induction motor of 200 H.P. capacity? Amp-255 A, Frequency:- 1450 rpm.

1924

For a three phase induction motor, what will be the effect on motor if the neutral of the system is shifted to say 20 deg.?

1787

What is T’Q and X’Q and X’D ? and what is saturated as well as unsaturated ?

1752

which type of questions asking for solar companies?

1543

When we use air circuit breaker, it has O/L protection ,time delay SC protection, Instataneous SC protection & ground fault protection. They all have some setting range. But what is the suitable/allowable setting for the above protection which will be safe for the equipment? For example-O/L protection setting have a range of (0.4,0.45,0.5,0.55,0.6,0.65,0.7,0.8,0.9,1.0)xIn Time delay SC protection have a range of (1.25,1.5,2,3,4,6,8,10,12)xIn Time delay setting is 0.02,0.1,0.2,0.3,0.4 Instataneous setting is fixed to 20xIn Gound fault setting is given 100A,300A,600A,900A,1200A This setting are for 2500A ACB. So what will be the basic allowable setting for the above protection? is there any formulae to calculate this<

2109

what is the star delta connetion and how can do it a three phase motor with control witing with picture

2230

For More Un-Answered { Electrical Engineering } Questions Click Here