Electrical Engineering Interview Questions
Questions Answers Views Company eMail

if our load in 3 phase circuit is 4000 amp. calculate the capacity of capacitor panel if line power factor is.80 .

ST Micro,

1 3216

 where the Motorized mccb to be used? In Motor control center panel starters ,it is use full. please answer  

Voltas,

1 4073

What are reasond for high wattage in single phase induction motors

1358

why we use 50 hz frequency in india .. why not 60 hz 

3 5282

Arrangement of earthing materials.like what we put first charcol,then salt.then plate. Plz answer me about that.

1 1944

What is rccb?

1 4153

what happends when an isolater is operated on on-load

1 3574

in a solar power plant,we are going to step up the voltage 350V to 33kv, and to 132kv GSS. i want to ask that if it is possible that 315v/33kv is not possible because we also use 315v/11kv. or it should be 415v/33kv? is it effects generation or losses?  the second question is-generation is depends on LV winding? or LV winding design for generation voltage?

1274

why current is constant on d.c?

1561

what will happen if frequency is below 50 hz?

Student,

1543

distribution transformer de-rating formula on over limit iron losses  

IESCO,

1792

if a train is running on a speed of 40 K MPH and crosses a individual passing by him in 48 secs who is riding a horse with a speed of 25 K MPH. what is the length of the train?

2 3232

in a delta-star with neutral grounding on star side what will happen if one star limb  got opened at star point

NTPC,

1 4133

what is power factor?

3 5246

Why we are using LA Rating 10kA in 66 kv substation

L&T, NMDC,

1 6475


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Un-Answered Questions { Electrical Engineering }

Why is water motor not taking the pressure? what is the problem?

1096


What is the principal of motor?

636


Hello Guys !! i want to rrb section engineer electrical(signal) previous model papers? any body help me?

1412


draw vector diagram and +ve,zero sequence diagram of symmetrical three phase fault.

1479


What do you mean by turns ratio of instrument transformer?

612






Motor,transformers,capacitor tubelight etc....

1205


In control room of our one plant there is a continuously the incoming power goes to PC is vary,means in stabilizer it continuously indicate from high input to low and low input to high. what is the reason and its solution.

1481


1.why we are using metal oxide gapless block in lightning arrester,2.What is minimum and maximum rating of metal oxide blocks using in india

1502


There are different classes of protections in power plants.class a,b,c are clear..is there any class d and e r there..and elaborate class b protection.

1619


How to determine alternating current frequency?

678


-How do you select cable size for a given load at a given distance from source of supply. How do you find voltage drop.

1347


How to Make relay co ordination chart for a Electrical power distribution of a plant

3264


how to electrically make connection to ferroli GN2N?

1460


when will be the iocl interview results i faced interview on 8th september 2008 iam from electrical branch i faced interview for the post of electrical engineer??????????????????????//

1578


WHAT IS THE FUNCTION OF SHORT CIRCUIT MAINTENANCE CT

2010