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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

why do motors burn out? I understand why adding parallel loads to a power source means more current moves through the circuit, and can destroy circuit elements by overheating. What about when you have a vaccuum cleaner intake flush against a floor, a room fan sitting directly against a wall, or a power drill trying to drill through something too hard?

2073

WHAT IS THE DIFFERENCE BETWEEN NUTREL AND EARTHING

Areva,

10 14295

For 300 MW plant what is the distribution voltage

6 9849

in alternator what is use of AVR ? how AVR is operating either AC or DC?

1 5440

in alternator how we can give power to rotor ? its power is AC or DC ?

5 7154

how can u determine size of the conductor by knowing the voltage level

2 5674

why HV test for cables?.why 0.7times?

Bosch, Prince Food Products,

1 4143

What will be the output of t/f supplied with DC sourse?

2 4667

what is IP55,IP65

2 9057

what do u mean by starting torque? how it should be for a good motor? what is the relation between starting torque and power factor? What is the relation between efficiency and starting torque?

2 4451

please explain me about traction application?

2 5788

define differential current and restraining current in relays. how to calculate it by mathematically? post the formulaes.

Siemens, VPEC,

4 34114

why the rating of a transformer in kva not in kw.

9 12002

why cu losses called cu losses.

6 9877

What is the value of nuetral current in star connected load when DC is supplied to it???

1 3820

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Un-Answered Questions { Electrical Engineering }

what is buffer resistance starter.?.What is the working principle and where it is used..?

2038

How Diesel Generator start ?

2417

Refernce currents are to be generated using refernce cueernts how can this be done

2265

What is the breaking capacity of transformer and how can we calculate the breaking capacity of tranformer

1949

What is the working mechanism of OLTC in Power Transformers????

4326

why do we use 25kv supply for traction purpose?

1923

what is a pilot wiring and whys that called a pilot wiers

1925

What is grid collapse? what is the reason for it?

2129

Incoming line 11kv And transformer capacity is 2500kva. Consumption load is 1300A. Then fuse capacity is 11kv line.

1678

WHAT IS DIFFERENCE BETWEEN MANUAL CONTROL AND MAGNETIC CONTROL AND STATE ITS ADVANTAGE /DISADVANTAGE

2089

how can calculation ate Amps for cabel. Ex-for 1sqmm wire hou many amps we can draw

2457

hi pal, i am vengatesh from tamilnadu(chidambaram),i have called for the written test for the post of jr executive(ELECTRICAL) of AAI ,I dont know about the question paper pattern,so any kindly help me to face the examination,post me the model question papers and some tips to write my examination to (vengi.annadurai@gmail.com)

1884

what is the ATS .And how it works.

1626

there is an alternator 480 k.w, 400v,50hz, 4-wire running on load having leakage alternator body earthed current 38 A. is it within acceptable limit? if yes then give reference if no then how to bring within specified limit

1932

What are the advantages of using distance protection schemes as opposed to normal overcurrent/ earth fault protection on high voltage feeders.

3596

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