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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What products have you designed which have entered high volume production?

Intel,

1492

What was your role in the silicon evaluation/product ramp? What tools did you use?

Intel,

1486

If not into production, how far did you follow the design and why did not you see it into production?

Bharti, Havells, Intel,

1635

what is the reason of power development in synchronous generator due to saliency ?

 1 6296

How is a 100 MVA transformer cooled?

 9 21011

What are the main Electrical IS rules?

3 8587

when we increase load , current drawn from source also increases why ?

5 20024

what is the difference between earth and neutral?

Bhel, Emerson, HCL, JLL, L&T, Siemens, TVS,

56 144110

What is thyristor?

 13 24048

What are the technical reasons for soaking transformers for various times before allowing them to pick load after a fault ?

GE,

4 50404

what is the instataneous value of voltage in a 3-phase balanced star connected circuit?

 6 10498

At which conditions a synchronous motor acts as a synchronous condenser?

KSEB,

9 23785

What is the power ratio between power in Star and Delta circuit?

ST Micro,

11 39659

For an 100kw generator, only 50kw of load is connected. will the generator generate only 50kw or 100kw. if it generate 100kw what happens to rest of the 50kw. what happens if we connect more than 100kw of load?

8 17396

In a synchronous motor armature current flows due to revolving flux which in turn rotates the load,but in no load condition armature current is zero hence thr is no revolving flux then how motor rotates?

 9 12763

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Un-Answered Questions { Electrical Engineering }

why we need to us lenz's law for synchornous motor

1973

Operation of isolators.

1374

I had applied for JE in PSEB, Can you pls send me the Question bank for related to my field

1383

Why collecting electrode of ESP to be earthed

1546

IN MY SYSTEM THERE IS ONLY OVER CURRENT EARTH FAULT RELAY IS AVAILABLE. FOR THE UNBALANCE SENSING IS THERE ANY RELAY IS AVAILABLE? THE SAME CTs WHICH ARE USED FOR THE OVER CURRENT EARTH FAULT RELAY CAN USE FOR UNBALANCE ALSO?

3065




What effect does a very low impedance have on the Voltage regulation? On the short-circuit current?

5750

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

1295

How to determine the breaking capacity such as break down current and break down voltage for VCB and CT's.

1649

HOW MANY TYPES OF FUSE?

1573

I need the recommended size for a 3 phase transformer at 13.8 KV Primary and connected loads of 3000 kVA at 4200 volts and 2375 kVA @ 480 volts AC.

1425

How seriving & testing of the HT & LT breakers are done. What are the standard Ir values on which we can come to know the test is passed or failed?

1418

What is the tipical Online UPS input voltage for 20 KVA load ( 3 Phase or 1 Phase )? Why ? Explain it...?

2110

How can we calculate cable size in Low voltage & high voltage

1090

Why efficiency in thermal power plant is low?

583

how does commutator convert a.c to d.c?

1695

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