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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

What is the avergae difference between OTI and WTI for EHV Power transformer?

7 35014

what is the natural resistance of the earth? and how it effected by rain r snow? wat is the natural resistance of wet soil? define natural resistance?

ECL, ISRO,

1 7503

is high voltage or high current is danger

L&T,

16 23284

we all know that both the generator and motor are electromechanical conversion devices.....then why we rate motor in kw and generator in kva????

KSEB,

4 7836

where would be tap changer in transformer & why?

Kentz,

2 4602

What is the diff. between single compression and double compression gland

ASL,

2003

what is the importance of fault level in power system and how is it decided

2 10901

What is annunciator ?

1 4152

why are you use the crgo core lamination in transformer

6 9836

IN 6.6KV 3 phase switch gear .i will give 6.6kv to R phase only to earth in during H.v testing (through H.v KIT).what happen remaining phases.how much voltage get remaining phases.why? explain.

1 5318

sir i am pradeep singh from electrical branch and i want to place in software industry(tcs)but i dont know much about programmig languages like c c++.so how can i get a placement in software industry?

TCS,

1 4060

Dear friends I want to design busbar for1600 kva transformer(i.e2100 amps) what are all the factors to be considered before selectinga busbar what are all the standard sizes of busbars what is the formula for finding current of copper and aluminium busbar

1904

How can we calculate single phase load into three phase load

Jindal, Tanfac,

2 5392

how the fan is switched off immediately switching off the switch?

2 4246

friends., why celling fan rotate cockwise direction and wall fan anticickwise direction ?

3 6698

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Un-Answered Questions { Electrical Engineering }

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

2042

What is the breaking capacity of transformer and how can we calculate the breaking capacity of tranformer

1954

Hi My dear all Friends, There is a question regarding HVAC Engineering and widely used in Power Projects. Question- What is the diffrence Between REF, SEF and Differential Protection....???? Where REF - Restricted Earth Fault SEF - Senstive Earth Fault.

2186

What is resonant frequency?

1284

What is FM200 Gas??Applications........

2377

we have require a Motor (1500kW, 6.6kV, 50Hz) which shall operate at 1500rpm during 30min and after it shall run on 500rpm during 15min. The same cycle shall be repetitive during the whole working days. Which method is best and economic to achieve such type of task. VFD, VVFD, Pole changing motor etc.

1922

what is relay what is protection & contact multiplying relays where it is used function in brief

1188

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?

2092

can we install HT panel & LT panel side by side or how much clearance is required ?

1594

What is trip and closing coil in cb? Why need of them

1525

how the works electronic energy meter?

2169

i have applied for the post of RRB section engineering chennai board please send me previou papers and solved answer. my mail id jagarapusrinivas@gmail.com

1979

For overhead protection we use which transformer?

2496

i want design of D.C.MOTOR 1HP 960RPM AND 2HP 960RPM ITS URRGENT

1958

draw the full wave and half wave circuit of 3 phase system and inverter circuit used in ups

2403

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