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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

which fault current is maximum: 3 phase short circuit, LG, LL or LLG?? why?? in one of the problems that i have solved, 3 phase short circuit current on an unloaded generator came out to be less than the LG fault current. can anybody please explain why.

Bhel,

2 11165

Sir I want questions for rrb sec technician gr III (electrical)

RRB,

1 5931

wat is the difference between BE &BTECH.

8 12980

what is meant by ceiling voltage, ceiling current?? pl reply asap

4 24289

How regulator control the fan speed?

4 24271

i need bhel question papers.

Bhel,

5 12332

generaly all power generating devices is expressed in KVA or MVA then why power ststion is expressed in MW

6 14249

why skin effect is decreases with decrease with frequency? why skin effect occur

Kirloskar,

5 16103

Can anyone tell me how a 12v battery is transformed to 20,000v at the spark plug

6 17488

What is the difference between reciprocating & rotary motors in AC units, which is the best one in terms of operation.

MacLellan,

2 12680

how to select cable size?

7 24284

what is the different betweem earthing and neutral?

8 13674

what is the term of desruptive voltage

Bhel, Energy Infratech,

5 11080

can induction motor run over the rated speed ?

ACC,

12 18643

Using 11000V/433V,3 ph,50Hz,500 KVA, what is the maximum capacity of motor in KW that can be connected and started at a single moment? Also explain about any calculations and formulas used in deriving the same.

4 8326

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Un-Answered Questions { Electrical Engineering }

what is the relative size of single and three phase?

1929

How to calculate the electrical load for a standard telecom BTS shelter and choose the DG set capacity for the same load?

3251

We have 110Vac ,10A ac supply which is converted into 110VDC & How much DC current? which factor is reqired for dc current calulation?

5221

Define bibo stability.

1121

is it possible to say motor horsepower number without seeing name plate(when name plate damaged)

2136

A 500 V shunt motor runs at its normal speed of 250rpm when the armature current is 200A. The resistance of the armature is 0.12 Ω. Calculate the speed when a resistance is inserted in the field reducing the shunt field to 80% of normal value and the armature current is 100A.

2559

what is the use of sdf?

2160

What do you mean by ratio correction factor of instrument transformer?

1234

Why ground terminal is used in pot meter 10k ohms

1940

Why human body feel electric shock?

1142

what is a power factor?

1878

hi friends if you have any 400KV Substation Erection and installations Drgs please send to me.My email id:kandi.suresh441@gmail.com

2969

Where should the lighting arrestor be placed in distribution lines?

1186

what happen if the load connected to the induction motor is taken away? the same question for synchoronous generator in synch i think that the the exitation voltage will appear on the terminal only if so plz answer me

2058

How earthing of switchgear system to be done.

1979

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