Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is the function of buchhos rely in transformer

5 4847

what is the function of conservater in transformer

3 9252

what is the function of cooling tubes in transformer

4 16446




kindly tell me how the load on generator increase by just increasing the fuel of prime mover, as if for exampple 20 MW gen set is synchronized the load ramps from zero to 20 MW gradully and during this procress only fuel of prime mover increases. Which thing determines the load on generator with respect to fuel

Birla,

4 11928

Hi, Next week Iam appearing RRB exam for section engineer. So help me to get modal question papers for this position. Iam very thankful to you. Whether question will be fully techanical format or general form. Please give me a details regarding this exam.

732

Why the dc voltage drop during starting of emergency lube oil pump? The Voltage drop from 135kv to 125 kv for one min. before re-establish to 135kv?

1003

Differenciate between circuit wiring and sub main wiring with illustrations

MU,

996

3. What is Impedance Voltage in Transformer?

L&T, Torrent Power, KESC,

16 93313




5. What is PMG in Alternators?

L&T,

11 35637

Why restricted earth fault protection is needed? Why can’t differential Protection is sufficient?

1002

why are you interested in joining in core company instead of joing in software company

11 18293

how to test vector groups in transformer differential relay.

1 2001

Is it true that IPT are more accurate than CVT for Measuring purpose?

2 2450

is emf is indued if dc is passed through coil

5 3968

why transformer not work in dc

16 20636


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Un-Answered Questions { Electrical Engineering }

What products have you designed which have entered high volume production?

717


why do motors burn out? I understand why adding parallel loads to a power source means more current moves through the circuit, and can destroy circuit elements by overheating. What about when you have a vaccuum cleaner intake flush against a floor, a room fan sitting directly against a wall, or a power drill trying to drill through something too hard?

784


Draw a block diagramof Three UPS systems connected in Parallel mode?

879


-What shall be short circuit current of LV switchgear for a 1000 kva, 11.415kv, 3 phase tranformer with 5% reactance.

924


what are the differences between 'exhaust fan', 'heavy-duty exhaust fan' & 'super heavy duty exhaust fan'. what are their power ratings ?

838






What is meant by earthhing of a magnetic flow meter and when to use empty pipe detection?

706


how u select control transformer for a mccb panels or any panels?for expample we hav 440 volts maim supply and control volts is 230v?

799


Mr. mohh sahid m not satisfied for ur answer to the que weather the size of transformer increases or decreases withchange in fr for more detail go to the answer given by me

793


If the line voltage is reduced to 75% of its rated value then by what percentage current will reduce ?? 75% 25% 50% no change and why ?

831


electrical

1000


Sir pl provide 5 year sample paper for post junior engineer(electrical).I have currently applied for junior engineer (electrical) on RRB Ajmer

2389


How can we checked Killo Watts of Motor & Alternator?

907


What is George phenomena to start the synchronus machine?

2470


how to electronic energy metter failed in electomagnectic fild passing in the metter and which thing to defect more on metter.

725


Salient pole alternator is more stable, why?

1099