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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

relation between power station capacity and voltage level?

2056

How can we determine or find out the proper size of any cable if nothing is mentioned on it.Calculation of size in Sq.mm???

1 3591

why we use star connection in HT motor? and delta connection in LT motor

npcc,

2 8523

How we calculate DC inducation moter Amp? Sir pls give me formula......

Superlite,

1833

is it possible to run the any motor when winding grounded? how?

1 3243

what is the use of back emf?

1 3429

How induction stove works?

1 2685

What is touch potential and step potential?

IRI,

2154

What will happen if i connect the delta winding motor to star input.

1 2518

How turns ratio test is done in three phase transformers?

2 4723

In a 11Kv/433Volt Delt-star step down transformer one one line(Line-B) of HT site is open & earthed on DP structur. What will be the voltage on LT side R-Y, Y-B,B-R and R-N, Y- N & B-N?. Please help to understand the problem with examples. Arvind , Jaipur.

1 3982

Pleasd Tell Me..... In Generating Stations Why The Generation Of ELECTRICITY Is In 3 Phase Form?? OR In Generating Station Why We Generates The ELECTRICITY In The 3 Phase?? Why Not In The 4 Phase, 5 Phase Or 6 Phase Form??

3 5366

How will you justify IR value and Charging voltage of any motor,transformer and Cables.......???? . . . . . . . . Plz tell me any body Baljeet Singh, engineer_89@refiff.com

2120

which element is neglected during fault calculation? a)resistance b)inductance c)capacitance d)reactance

4 8175

where transformer is installed? a)generating station b)substation c)voltage regulating area

6 7105

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Un-Answered Questions { Electrical Engineering }

how diside ct mf exmp.200/5 ct

2188

th how could we differentiate between armoured copper and armoured aluminium cable what is the basic application? why we prefer the armoured copper as compared to armoured aluminium.

1965

Power factor =1.000 at factory in supply. However, PF = 0.8 at motor end. Current = 100 Amp, Voltage = 400 V. What is the power distribution loss? Can I reduce it by adding capacitor at the load feeder?

2041

The capacitive reactance of a capacitor of 1/(2(PI)) F at 10^3 H is

1846

what is feed back and what are feed back amplifiers?

1071

My question is abt backlog.I had dropped one subject in my second year, and completed this subject in the 3rd attempt, so how many backlogs i have got?1 or 3?plz sujjest the answer as soon as possible

2105

why electron produce magnetic field when it is in motion?

2144

How much dc volt applied in cathodic protection system?

2329

what & how to check the lightning arrester

1915

why we use condenser in the thermal power plant, althrough the same vapour will be again heated

4863

How to detect voltage vector shifting in interconnection protection.

1905

Why power factor should not be in leading (capacitive) mode of any load.

7023

TRANSFORMERS WITH DC SUPPLY

2079

what is earthing.how we make it,describe briefly.

2621

distribution transformer de-rating formula on over limit iron losses

2304

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