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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

we have one ups its neutral is not earthed.its one distribution MCB has a earth fault.but we can not put off any MCB.so how to find out that in which circuit is earthed without isolating the breaker.

CFCL,

3 7333

How power cable & control cable can be differentiate from each other ?explain?

Aster, Finolex, TCE,

14 26844

what is the maximum genarating voltage in india?

32 35161

CONSIDER A 415V/200V STEP DOWN TRANSFORMER.CAN WE USE USE IT AS STEP UP TRANSFORMER BY GIVING 200V IN SECONDARY AND TAKING OUTPUT FROM PRIMARY?

L&T,

22 29387

WHY THE FREQUENCY IS 50 HZ IN INDIA.CAN WE USE SOME OTHER FREQUENCY.IF SO WHAT IS THE RANGE AND WHAT WILL BE THE EFFECT IN PRESENT POWER SYSTEM IF WE CHANGE THE FREQUENCY AS YOU SUGGEST ?

L&T, MCL,

32 58722

WHAT ARE THE FACTORS REQUIRED FOR SELECTION OF TRANSFORMER RATING?

Tech Mahindra, Technip,

13 29278

What is the difference between Neutral and Eatrh?

8 11892

How will you Protect aeroplanes and Ships from Lightining?

Parco,

3 6494

What is meant by Floating Neutral? how to prent

7 24852

can we load Power capicitors on DG sets?

Neptune, Nimbus, Westin,

14 21653

why dc measurements are noted in mc whereas it is mi in ac measurements?

1 3508

What is the principle of HIGH SPEED DIRECT DRIVE MOTOR ?

Honeywell,

2014

why DG neutral is earth?

HP,

4 24012

what is function of pump in DG?

HP,

6 19723

Why Transformer in KVA?

APCPDCL, Apollo Power, College School Exams Tests, Electrical Tech, Hitech, HP, L&T, MDL, Oil and Gas Jobs, TATA,

41 90999

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Un-Answered Questions { Electrical Engineering }

what is formula for calculate thermal overload in new numiricalrelay( not in bimetal relay)?

2312

What is making & breaking current ???

1515

I need to connect a synchronous generator to the grid using automatic synchronization and two circuit breakers (one for synchronization, one for end connection to the grid), how to determinate the required diameter of the cables?

2572

Sir 33kva 2 transformer load 900 amp calc 1800 amp mana jayega

1834

describe the Tranformer testing procedure

1881

What is mason's gain formula?

1300

1. A bomber drops a bomb from an aircraft flying at 2000 km/hr. at an altitude of 7km. The speed at which the bomb will strike the earth would be

1909

What is inrush current?

1177

WHY IS THE EARTH FAULT CURRENT ALWAYS LESS THAN THE NORMAL CURRENT??

2227

substation+ plc system

2080

What is the procedure/activities to be taken to inject the current more than 2000A by using 2000A Loading Transformer?

2009

sir please send me techinical questions for junior engineer posting in bangalore railway i am diploma holder

2099

electrical knowelge

1170

What is the limitation of kirchoffs law?

1135

At full load wat is the motor p.f And at no load will is the motor p.f?

2124

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