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 meter used to check the DG sound level.and pollution check

2 5489

What is the permissible sound level for 1000kva DG set and how the sound level is calculated.

1 3544

why rotor winding in induction motor is not earthed. normally we uses star winding in rotor .why?

Anglo Platinum, TATA,

3 8798

why do we not use equivalent voltage source in negative sequence equivalent ckt.

TATA,

2048

Hi all I had applied for the RRB test in the ELECRICAL category. I would be pleased if any of you can sent me previous year question papers. Please forward the question papers to varshashahi@yahoo.com Thanks and regards Varsha

2188

Please sent me some previous year question papers of BSNL-JTO telecom and RRB in ELectrical Engineering to varshashahi@yahoo.com

2063

PLease anyone can tell me CTUM-15 specification?

Gilbert Maxwell,

1 11816

Define protection core in CTs Ex. 5P10, 5P20 etc.

HPL,

1 5598

For a Potential Transformer(PT), the primary neutral terminal must be grounded before energization. Why....? What will be heppend if we energize the PT without grounded the primary neutral point? Why..........?

2 16950

what is difference between tension tower and suspension tower?

8 44454

which transmission is cheaper ac or dc?

10 12117

what is 400kv doble circuit quadpole tower?

1947

what is S.D.F stands for ? (S.D.F unit 80 amp , TPN )

6 22620

What is best method of Calculating Short Circuit current in power system network.

1 4719

What do you mean by cold shinkable cable joint.How it is done.

1965

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Un-Answered Questions { Electrical Engineering }

Why delta star trformers are used for lighting loads?

1177

what is the difference between switch yard to residential area.and how much required it.

1771

Why phase sequence must be same in any ht motor or generator circuit?if phase sequence doesn't same whatever will be affect on circuit?

2205

HOW WE KNOW IN PHYSICALLY THE CONTACT SURFACE OF A VACUUM INTERRUPTER IS GOOD OR GOING TO DAMAGE IN A VCB AFTER ABOVE 500 TIMES OPERATED.

2053

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.?

1827

how to extend relay operating timing in 24V dc relay card (without using Timer )

2007

how to find the capacitance value of the motor while running??

1930

Scott connection is used for A 3-phase to 2-phase conversion B to achieve higher effciency C to save copper D to reduce harmonics

2311

Draw a SLD of HT distribution EB grid up to users Transformer?

6207

1. what is usage for power factor in industries?? 2.why we need to monitor power factor??

8205

How to calculate the Efficiency of Chiller

3353

why you don not show protection and type of isolation in key single line diagram?

1980

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.

1974

What are the advantages of thermal power plant?

1179

what is transformor oil gread

2538

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