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 do we find the rating of a transformer, if it got burnt badly.

1501

what is the reason of capacitor failure in alternator which is working with 10 kva dgset

1631

reason of capacitor failure or low voltage in alternator wtih 10kva dgset

adag,

1601

reason of diode failure in alternator

adag,

1798

aternator every parts and its working

adag,

1589

what is the difference between directional & non directional earth fault with example please explain.

1808

How to calculate pitch, gauge of winding wire, and No. of turns for 30HP, 3 phase, 4 poles 50Hz, 380V induction motors

1888

The undesirable property of an electrical insulating material is

3 6611

How to size fuse? How to size MCB?

1471

1,Building containing 25 flats how much Amp 3 pole MCCB are required? 2, For the safey of each flat how many Amp RCCB can install -loaded with A/C

L&T,

1 3004

I Want randstand placement papers

Randstad,

1779

What is difference between YNyn0 and YNyn ??

2477

what is dry and wet frequency withstand voltage? why & where it is used??

2370

If the Brush of DC motor is shifted by 90 deg, then what happens to voltage and torque? Both voltage and torque are zero. how to justify the answer?

1390

What happen when change order of CT in GIS feeder?

1605

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Un-Answered Questions { Electrical Engineering }

H.t motor 6600 volt to same motor lt supply 440volt supply applyed to h.t motor to effect....

1846

What is the difference between Droop vs Isoch Control?

2380

Diagram and details of polarity test for Current Transformer 11kv 400/200/100/1A

2991

How does an induction motor start?

1162

Is any AC drive(VFD) had a feature of DC injection braking? if available please mention the detail. i.e drive can supply braking torque when the motor in idle state.

2103

Why synchronous motor is used in power factor improvement,dc series in lift

1618

The SFC of an engine is 0.25 kg/kW hr. when the fuel used has a calorific value of 36000 kJ/kg. the thermal efficiency of the engine is

1906

how to size H.T & L.T Panel ?

2091

what is size of 3phase 4wire cable to be used for 11 ton ductable A.C and how to calculate cable size for different load

3987

WHAT IS THE WORKING PRINCIPLE OF A GENERATER.how is a GTG (Gas TURBANE Generater) working.plz explane

2484

can anyone please help me to find the rupturing or breaking capacity in KA of circuit breaker (MCCB,VCB,ACB etc) of HT and LT side of a distribution transformer...please help with detailed step by step answer...thank you

1948

What is value of earth resistance required for substation and equipment earthing and what are the reference guidelines

1745

what is the effect of connecting three phase supply lines to three phase auto transformer output terminals through a fuse of 10Amp and a circuit breaker (MCB). Is this connection permanently destroy the transformer?

1896

how we calculate electrical load on a building according to area?

2740

I have c license but I don't know eligibility of Max Kilo Volts under the electrical licensing board.

1651

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