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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

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

Crompton Greaves,

7 31562

What is the result of under frequency to the system.

4 10377

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 2319

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

4 4666

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 9144

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

3 8632

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 80714

In Aeroplane what circuitry or method use for earthing?

Bhel, EDA, Wind World,

9 19247

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,

5 28176

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

826

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 4579

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

982

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

6 20409

What is the reason for low voltage in houses?

Maytas,

19 44312

what is fault level in 66kV system?

3 5213


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Un-Answered Questions { Electrical Engineering }

How to do cable earhing? whether by grounding Armour to ground or by running extra G.I wire along with cable? which one is preferred mostly amoung them? If the second one is more preferable how many GI wires to be run along with cable (1 or 2)?

1030


how did the testing of protection relays done through current injection

1198


how to calculate the mesh earth network resistance in such substation, is there any recommended resistance values with references , thanks!

1374


how we can come to know that motor winding resistance which showing by DMM is right or wrong???is there any chart or something that we will compare & check???

959


a 100mva,400/200v transformer has leakage impdce of 10% draws a steady state line currentof---------------

982






What is the difference between cylindrical-type and sandwich-type winding?

153


The ripple frequency in output of fullwave bridge rectifier is a. Half the input b. Twice the input c. Same as input

1355


i applied for c licence with my one year apperents trainee and i have attaced with A grade contractor company experiance that is for 14 monts experiance this document is sufeicant for c licence? pls tell why they rejected

1125


What is the permissible maximum flux density in transformer core?

171


What happen Grid EARTH plat got cut.

1270


hi....I am from india..i have completed my engineering in electrical and electronics field with 58.4% and my IELTS score is 5.5 bands....Recently i received my I-20 in computer and information science from Troy university in Alabama.On 18th i have a visa interview can u please tell me what type of questions i have to answer ??????

894


How can we find out LT UG cable fault (size,from-4*25mm sqr to 4*300mm sqr)? How mani types UG cable faults?

2032


What is the difference between shortcircuit current, rated current of cable & MCB with example? What will be the size of cable required for 5.5 KW motor (Full load current 10 Amps approx.), Starting current with DOL is 120 Amps. Aprrox. Short circuit current with LLLG fault is 2000 Amps Approx.

1089


what is efficient motors and how it is different from normal induction motors

956


What is the real function of reverse power relay in generator panel while syncronising?

1104