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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is the working principle of DC generator ?

DRDL, HCL,

10 16805

In zero voltage we can pass supply to our body means we cant get shock its true ? how we can do it ?

 4 4651

what is the difference between brushed alternator ,brushless alternator & permanent alternator ?

 1 25618

What is system earthing?what are the types?

ABB,

1 2847

why it is so called as xlpe(cross linked poly ethyline) cable?

1607

How single phase & 3 phase motor select rotating direction ie clockwise/anticlockwise

DRJ ARDE,

6 8833

a 50hz motor to give 60hz whats happening in motor.what happen the motor.

 6 7564

in Megger what type of voltage(AC or DC) are produce.how they work.

 1 12193

An AC coil to give DC supply whats happen in the coil.what type of problem are create.

 2 4138

An AC Motor to give DC supply what happen the motor.whats the problem are create.

 2 4370

what type of motor are there in megger how they work.

 2 4294

how to avoid electrical shock how capacitor store charges wat are the speed control of induction motors state faradays law flemings left hand rule what is rotary converter wat is transmission and distribution what are the sources of energy abrevation of acb,vcb,sf6,igbt what is output equation of transformer which test copper iron and iron loss are calculated what is eddy current draw a single line diagram (10 marks) draw direct online starter(10 marks)

1441

phase colour is indicated by R Y B (red yellow blue) but in transformer i have seen U V W instead of (R Y B) have any meaning of this

Areva, Kim Yew,

3 20013

how to calculate the capacitor to maintain power factor?

Bosch,

1664

What is expand formation of AYFY cable

HP,

2 4787

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Un-Answered Questions { Electrical Engineering }

What is star-delta transformer?

691

what are the tests comes under the type test, what tests comes under routine tests.

1028

The power factor of the fixed load is 0.8, now the p.f is varying from 0.8 to 0.5.

1572

either water sensor or flow meter,how we observe the water level, f any other equipment are in market ?

1419

how do we calculate length of starting time and repeated starting of a direct online starter?

1544




how do u gauge the size of the cable ?for eg. consider a 300 sqmm L.T Cable.How do u determine the size of the cable seeing it pratically?

1654

What is 100% protection of generator? Why 100% is not used but 95% is generally used?

621

briefly explain the main blocks found in a microprocessor based system

1715

Give atleast 20 alternating current apparatus and devices.

1251

Maintenance of transformer???

1804

Draw a circuit diagram in which if button is open we can use socket and bulb as a series test circit and if button is close than simple we can use socket as any load purpose.

1438

What is difference and reason b/w -48V BTS system and 24 V BTS system. Plzzzzzzzzz tel me.

1723

How many double suspension hardware fittings are required on a double circuit transmission tower?

1564

What is main cause of cable's terminal point burned in Lug on high temperature although lug and cable selection is ok as per stantard and also tightness is ok as per situation. so please take in deep and tell correct answer thanku.

7383

What is the function of under voltage release ?

985

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