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Electrical Engineering Interview Questions

Which motor isused in indian railway system?

3915

Is Indian railway uses 25000v ac or dc?

6924

how and where does star and delta connection is used ?

3386

sir, what is the importance of Fault MVA. how to calculate fault mva of 33kv substation connected by 6.5 km line(single circuit with equal spacing) with 110/11kv transformer in 110kv susbstation.the fault mva on 11 kv bus in 110kv susbstation is 208mva.

2078

what are the particle used along with silica gel in transformer breether,explain their functions.

4947

what is the difference b/w permitivity and permeability

2171

how many hvdc lines in india???

1138

If the field winding of the dc shunt motor is removed then what will happen to the motor ? will it turn or not

2350

If Ac supply is given to the DC motor then what will happen? clear explanation

3161

When we give supply to a transformer 11 kv and we get 415v from it, so when we give supply to same transformer 415v on ht side what we get? and When we gives supply to any transformer to L.T. side 415v or 220v What supply is on H.T. side?

4965

If we are given a 10 amp cable type and asked to calculate the number of cores used and the thickness of the cable, how do we do it?? please help...urgent!! i hope the question is clear enough!!

1035

what is difference between short ckt and overload?

8123

why most of the modern day type electrical appliance have 2 pins rather than 3 pins?

3406

why magnet has north and south poles only why not east and west and why we are considering as north and south poles? why cant we consider as east and west?

1104

america 60hz electric supply is used; but india it is 50hz; why? and if we use 60 hz supply what changeg has to be done or all the equipment has to be thrown which has rating of 50hz frequincy

2827

Un-Answered Questions { Electrical Engineering }

Good morning: I'm looking for some informations about the OLTC or the LTC: I wont to know what the function of the tie-resistor in during the operation of reversing/coarse operation Cordially

1201

what type of earthing do for dry fissure rock?

1617

What is a surge supressor why its is used in synchronous generators

1155

If the line voltage is reduced to 75% of its rated value then by what percentage current will reduce ?? 75% 25% 50% no change and why ?

1257

WHAT IS THE DIFFERENCE BETWEEN AN ACB & mccb 7 WHAT IS THE CRITERIA WHEN TO USE WHICH OF THE TWO

1416

How to know Resistance and Reactance value of main and aux winding of single phase capacitor start capacitor run induction motor to find capacitor value?

1102

What is CCM in Electrical ? where can we use this material?

501

What is slope...? Explain slope 1 and slope 2...?

637

On 400 amp factory load how kvarh capacitors provide

902

why u r living from presentaly working.

1465

i applied for c licence with my one year apperents trainee and i have attaced with A grade contractor company experiance that is for 14 monts experiance this document is sufeicant for c licence? pls tell why they rejected

1197

What types of CMOS memories have you designed? What were their size? Speed? Configuration Process technology?

2527

Describe the test procedure to determine the vector group

1198

Connection diagram for KW meter and  Kva meter

1287

for opening electrical shop, tips needed.

873