Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is the diff. between two phase & three phase supply.

Crompton Greaves,

7 34133

What is the result of under frequency to the system.

4 11696

Since phi is the angular displacement between V & I, then why we use phi in power triangle ie. when showing active, reactive & apperent power in triangular manner & if it is ok then where is V & I in the triangle.

1 2984

how system voltage affect the power factor or vice-versa.

4 5975

why neutral of 6.6 kv star connected sq. cage induction motor does not get earthed, though for earth fault protection it is must.

7 11013

why active power is called as real power or working component.What is the exact function of active, reactive & apperent power.

3 9717

How to calculate the diesel generator efficiency? what details are required to identify the running diesel generator sets with 1000 kVA & 180 kVA?

Greeves, Sudhir Power,

11 87114

In Aeroplane what circuitry or method use for earthing?

Bhel, EDA, Wind World,

9 21353

How a synchronous generator practically work? what is the function of avr(automatic voltage regulator)in synchronous generator?how the connection of avr to the generator made practically?please give me the answer.

Accenture, Heineken,

6 30427

sir& friends i want the collection of recent quetions asked in interview of top most companies please send me on my email san.jsr@hotmail.com

1307

why voltage drop if we have connected 230 v ac suplly through diode to bulbe we found haft ie 110 voltage drop why it is

4 5735

please send me latest & previous years question papers for IOCL Technical level questions

1376

ON WHAT BASIS LOADS ARE CLASSIFIED AS RESISTIVE,INDUCTIVE AND CAPACITIVE LOADS?.GIVE PRACTICAL EXAMPLES FOR EACH

6 22360

What is the reason for low voltage in houses?

Maytas,

19 49282

what is fault level in 66kV system?

3 6693


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Un-Answered Questions { Electrical Engineering }

What are the advantage of free wheeling diode in a full wave rectifier?

616


Is there a diode made that works with AC 120 volt 20 amp? If so can it completely stop all current flow in 1 direction at all times?

6111


AL=0B9H,bl=75H, ADD AL,BL AL=____________? CF________? OF___________?

2148


Why derating factor os applied on Cables?

1489


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

1529






Explain the propagation of harmonics in the network and influence of phase angle of harmonics.

1474


What is the function of interposing current transformer?

573


What are the applications of different multistage amplifiers?Plz also write advantages of these amplifiers? Thaaaaaaaaanx

2407


How to back charge the Gas turbine generator

1591


1.why we are using metal oxide gapless block in lightning arrester,2.What is minimum and maximum rating of metal oxide blocks using in india

1491


What is the formula to calculate distribution transformer De-rating on iron losses basis

1334


Differentiate between low pass, high pass and band pass filter?

594


What is the formula to calculate the no load current of a single & three phase induction motor

1738


HOW TO CALCULATE THE REGULATION OF 100 AND 25 KVA TRANSFORMER

1417


What is the minimum underground tank size capacity considered for firefighting purpose?

1432