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 are the uses of stepper motor?

1306

How to calculate capacitor bank value to maintain unity power factor with some suitable example?

1197

Tell me in detail about c.t. And p.t. ?

1213

Explain about c.t?

1204

Explain about p.t?

1140

Whether power factor should be high or low? Why?

1184

Why we do 2 types of earthing on transformer (ie:)body earthing & neutral earthing , what is function. I am going to install a oo kva transformer & 380 kva dg set what should the earthing value?

1211

Where should the lighting arrestor be placed in distribution lines?

1191

What are the transformer losses?

1231

What is the count of hvdc transmission lines in india?

1149

Why an ac solenoid valve attract the plunger even though we interchanges the terminal? Will the poles changes?

1267

What is derating?, Why it is necessary, it is same for all means for drives, motors,and cables.

1 2044

Why temperature rise is conducted in bus bars and isolators?

1425

If one lamp connects between two phases it will glow or not?

1135

What are hrc fuses and where it is used?

1236

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Un-Answered Questions { Electrical Engineering }

Whar is the KvA rating of 33Kv substation & actual kv rating of power generaating station.

2443

Explain what cmos is and its benefits?

1149

What is the function of RCBO? What are the different sensitivity ratings & each application?

2881

in shunt clippers why a resistor is used in sereis with the input

2168

This is reqd for a 1MW Solar power plant..We have 2DC outputs from the solar panels Connected to 2INVERTOR panels.. Output from invertor is 3ph,280v,500kva,50hz.These are connected to individual ACB.This has to be stepped up to 11KV ,1250KVA SYSTEM.Now can I use (1) one more ACBTO GIVE A COMBINED OUTPUT OF 1000KVA,280V & STEP UP THE OUTPUT BY USING a single two winding 3 ph transformer 11kv/1250kva. or (2)use the two outputs and connect to one three winding transformer of above rating..Pls suggestwith details.

2528

What are the basic & Majour problems in UPS ?

2174

what is transistors comprised of?

1251

3ph motor running with unequal kw and different pf what are the reasons

1970

A 3-PHASE TRANSFORMER IS USED TO STEP-DOWN THE VOLTAGE OF A 3-PHASE, 11KV FEEDER LINE. PER-PHASE TURNS RATIO IS 12.FOR A PRIMARY LINE CURRENT OF 20A, CALCULATE THE SECOUNDRY LINE VOLTAGE, LINE CURRENT AND OUTPUT KVA FOR FOLLOWING.A)STAR- DELTA.B)DELTA-DELTA.

3121

Sir pl provide 5 year sample paper for post junior engineer(electrical).I have currently applied for junior engineer (electrical) on RRB Ajmer

3691

how to calculate the change over time for star delta starter for different KW motor?

4281

why we can use 1 to 5V dc

2014

what is meant by motor startup supervision & motor load jam protection ?

6083

In EB metering we face problem kva jump even in no load condition.can any one help to control this

1891

sir pls send the je exam - 2008 and other model question papers..

2123

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