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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

wht do u mean by constant flux linkage theorem ?

3 20957

when running 2 nos 450kva dg sets in parallel operation ,in one Dg set power factor and Kvar going to lagging and ampere suddenly going high,please give me suggestion to correct the same.

2 7001

How to Calculate the current drain in the battery (1.4V) for the 2mins time period?

7 9194

Why does the phase voltage of two healthy phases become equal to the line voltage in case of an ungrounded neutral 3 phase star connected sytem when a single line to ground fault occurs ?

2 6354

what is the best electrical system i.e substation sytem of 11kv/.433kv for a township. if township have 300nos substation of 11kv. we have to go G.O.D.O. fuse unit or Compact Substation Unit. please reply Asap.

2 5505

WHY LINK NOT A FUSE IN AC CIRCUIT

3 6407

What is the Different between CT Class-0.2 & Class-0.2s ?

3 39338

what is impedence in transformer

2 5044

How to Calculate IKW(input kilowatt)of a Chiller plant

Voltas,

2 25534

Whats parameters which we keep in mind when grounded any electrical machine.

Essar,

1 3891

domine+aptitude test means?

2 5155

What happen if 1200KW/1500KVA alternator runs at no load and high R.P.M.for one minute?

6 12526

I BOUGHT A HAVELLS ACCL WITH GENERATOR STOP FASCILITY(i.e- BASICALLY IT IS A AUTO CHANGE OVER SWITCH) FOR MY HONDA EXK 2000S HOME GENERATOR (WHICH START IN PETROL & RUN IN KEROSENE). ACCL HAS 8 POINT. 2 FOR MAINS(PH & NUE), 2 FOR LOAD, 2 FOR GEN AND 2 FOR IGNITION POINT(X1 & X2). THE IGNITION POINT IS SPECIALLY FOR AUTO ENGINE STOP WHEN MAINS POWER RESTORE. I CONNECT THIS X1 & X2 POINT TO THE GENERATOR STATER MOTOR & EARTHING POINT. BUT WHEN MAINS FAILS THE GENERATOR COULD NOT START, BUT WHEN DISCONNECT THOSE X1 OR X2 POINT, THEN THE GENERATOR START. BUT WHEN MAINS ON THEN THE GENERATOR SHOULD START, AND WHEN I OFF THE MAINS THE GENERATOR AUTOMATICALLY STOP. PLESE HELP ME HOW I STOP THE GENERATOR AUTOMATICALLY WHEN THE MAINS RESTORE.

Honda,

2 11522

what would be the earth to neutral voltage in industries? if it is not main Taine then what will happen?

4 6097

what happen if generator of micro hydro running at only a small percentage of its capacity, as a comparison, if the diesel generator that runs on only a fraction of its capacity there will be a wet stacking

1944

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Un-Answered Questions { Electrical Engineering }

list of tests to be carried out at manufacturers end while purchasing a step up transformer of 11kv to 66kv ,2MVa Capacity.

1983

What is q factor?

1127

transformer spections :: input voltage 0-110-230v; output volage 0-10-12-14v; amp=3A using CRNO CORE, capcaity=50VA primary turns = ? ; secondry turns =?

2097

What are the types of class b amplifier?

1097

what is difference between earthingpits,earthing grid & earthing mess?

2513

why lightning arrestor are made in two stack of insulator but why not cvt

2078

what is the significance of terminal voltage and phase sequence in the operation of paralleling of two generators?

2546

What are electric motors?

1158

Explain what is rated speed?

1134

In Indian Household, generally we receive 220V AC single phase supply. But AC has 2 phases, +ve & -ve. So in +ve half cycle current is flowing...so what happens in the -ve half cycle?? Please illustrate.

2031

what is thresold of perception

2076

How to calculate or formula to calculate rhe power in 2 phase system ??

1511

What is the difference between Encoder and Resolver?

3531

what is the acceptable limit value for Desolve Gas Analysis/

1986

explain Density

1135

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