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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

in three phase 11kv transformer (11kv/433v) input( R,Y,B) output (X,Y,Z,N) the connection as follows 1 phase R -open 2phase y connected to both R and y of input] 3phase B- B what is the output voltage X to N ,Y to N , Z to N

Bescom,

2 9055

If we tell 60 sq.mm. 3-1/2 core cable,then what does it mean ? 1) Each core section in the whole cable is of 60 sq. mm. 2) The whole cable is of 60 sq. mm. which is sub-divided into 3-1/2 core.

Cura HealthCare,

3 5768

why you don not show protection and type of isolation in key single line diagram?

1979

In all electric motors, fans are provided to dissipate heat. How it dissipate the heat? By absorbing atmospheric air or by exhausting the heated air generated while running?

Ford,

2 5496

why are the a.c.series motors preferred for electric traction

4 11112

In 1000KVA Transformer why does we connect HT with delta connection and LT with star connection.Illustrate by showing formula?

Tata Motors,

4 10671

IN A SMALL D.C GENERATOR, IF WE REPLACE THE LAMINATED CORE ARMATURE WITH A WOODEN BLOCK OF SAME SIZE & SHAPE AND WIND WIRES WOUND ON THE SLOTS OF WOODEN ARMATURE AND CONNECTED TO THE COMMUTATOR.COMMUTATOR IS FITTED WITH BRUSH TO RECEIVE INDUCED E.M.F.WHETHER E.M.F GENERATED OR NOT?

3 4645

what is purpose of using reactor in substations

NCC,

4 6617

show that power dissipated by a pure inductor exited by a sinusoidal voltage source v = vm sin wt is zero

1 4980

how ceiling fan worked?

1914

Transformer diagram mention each parts ?

2041

why 30kva ups buzzing(hamming) sound?

Madhya Pradesh Electricity Board MPEB,

2 5748

in ACB breaker requireding 3200Amps. buscoupler getting OFF mode and again it reset and getting normal position give me a required answer?

2337

30 kva ups may kitne output voltage hote h

ME,

1 3735

A ceiling fan moves Counter clockwise & a pedestal fan clockwise.....y the difference????

Alstom, NTPC,

5 12355

Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

how can get electrical c licence.now i am working in spining mill , transformer capacity 2750KVA. SANCTION DEMAND 2250KVA. PLEASE ADVISE ME . MY CONTACT NO 09944226823

1800

1.what is meaning of curve into a mcb. 2.what is basic reason changing of curve

1997

I FINISHED MY B.TECH IN EEE . I AM IN NEED OF A GOOD TRAINING INSTITUTE TO DO COURSES .. CAN ANYONE SUGGEST GOOD CENTRES IN TAMILNADU ,BANGALORE ,OTHER AREAS???????

2012

what is the significance of cabability curve of alternator

2227

How to do stting of vl250 siemens MCCB

2959

I am B.E.electrical engineer having 7 years of experience in Transformer testing upto 315 MVA.I want to khow how I can get the 'Electrical Valuer' License.

2103

why does the magnetic balance tests at transformer?

1944

How RTCC panel is working and give single line diagram for RTCC with transformer?

3108

DEAR SIR/MADAM,CLEARLY EXPLAIN ABOUT CRAWLING AND COGGING EFFECTS IN INDUCTION MOTOR.

1974

i need to now what will be the cable size to the following load, transformer to distribution panel distance 110m, load 1000kw, voltage 400v, pf 0.85, permissible voltage drop 2.0%, overhead line, atmospheric temperature 35 degree c.

1623

harmonics filter

1949

what is meant by tranformer impedance?

2605

hr round

2138

Type of motor stater detail and working detail

1661

What is the unit audit? if our Max demand is something and we found much more unit then how to improve our max demand?

1952

For More Un-Answered { Electrical Engineering } Questions Click Here