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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

How can one connect three source of electricity in a house..the source are 2 gen and one electricity.

SAUDI ARABIAN BAYTUR, Wantro Technical Services,

2 6156

Why we use Fuse in transformer in secondary side.Why we dont use fuse in primary side?

Care,

1 4542

how can i change the rotation of the AC single phase induction motor and show me by diagram

1817

in general it is observed in power stations, the tertiary winding is used in higher rating Y-Y auto transformer but not in Y-Y power transformer. is the tertiary winding is compulsory then why it is not using in power transformer

1820

how do you choose the cable size as per amps rating & the voltage drop for the same.

C&W,

1795

Could the power factor on electrical system can affect the registration of the kwhr meter or the CT/PT?

1976

how to calculate the phase diffrence beetween given two equetion y= 15sin(wt+pi/3) and y=10sin(wt-pi/4)

1 3201

how the speed decreases of a generator in power station if load increases

Tata Power,

1 4860

Why consider motor rpm to select capacitor for motor

KSEB,

1 3486

How many percent of power are not being registered if we bypass one side of the meter base terminal using #8 cu wire on 1-phase kwhr meter.

1 2899

in dc shunt motor if field winding is shorted then

1858

in dc series motor if field wdg is shorted then

1879

in dc shunt motor if armature wdg is open then

1 2988

10rm cable can got load ---- amp? Or Which Size Cable can take the load 100amp capacity SCR; breaker.

B-Con Trade Associates,

1 3562

3ph line voltage 220v, how can run a 220v single ph motor or Light?

2 3587

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Un-Answered Questions { Electrical Engineering }

what is distribution board?

2323

If you have an earth with pilecap then your resistance is really low. why and how?

2029

at what basis/standard we have to arrive the current density of aluminium/ copper in busbar?

2138

Which type of motor is used in trains, what is the rating of supply used explain working principal?

1300

can someone explain that how the speed of the protection system affects the fault level calculation?

2108

What is servo motor and what are different types of servo motor

2414

can you send me the placement papers of electrical engg. from companis like NTPC,DRDO,IOCL,HPCL,BPCL etc.?If,plz send as soon as possible.Thanks.

2159

If VFD is On but no starting commond on it. so how many outpout voltages of VFD

1167

What about electrical Units. discrive in detail

2113

What is the formula to find out two phase active & reactive power

2208

Q.1:What protection will be used on HT and LT side of 33/0.4 KV, MVA transformer. Indicate capacities of protective device to be used. Q.2:Which types of back-up protections are used in the power transformers? What do you understand by the term over travel in the relay? Q.3:How star and delta connected winding transformer are provided from earth fault

2142

What is the type of feedback used in an op- amp schmitt trigger?

1035

How I calculate the ELCB for circuit breakers?

2199

what is the minimum (Common factor) insulatin resistance of the following a, 4mm sq wire b, cable from 50 mm sq to 800mm sq

2120

The electromagnetic torque developed is proportional to what in a D.C series motor?

1188

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