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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what will happen if any motor runs long time with star connection in400vA.C. system

5 6996

What will be the effect of in HT XLPE 220 KV cable when one side of the Armour/cable ends are not grounded. Will there is difference between 3-phase voltages? like: if A. Both End of Cable grounded Phase Voltages:- V1=219 KV, v2=220 Kv, v3=220 KV. B. One End is grounded other is not: than Impact on Phase Voltages:- V1= KV, v2= Kv, v3= KV. Remain same or unchanged??

Jamshoro,

3 3449

What is meant by cold loop test in instrument

Transnet,

1633

what is the diffference between 3 point and 4 point starter ?

3 4111

Baud rate is used to descrice...?

2 2374

why write 500v on line tester (Test pen)

3 3185

why in the three pin plug all 3 pins are cutted ?

1003

For some transformers we are using solid neutral earthing while some others we are using resistance earthing why ?

1015

If you touch at the end welding machine, will you have shock ?

1 2328

What is the purpose of stand by earth fault protection for transformer ?

1068

what is the need to express current and voltage in rms value? rms value is also called as effective value,what is effective value?

Bhel,

1059

what is power factor ? why is it so important?

Telco,

2 4802

what is reactive power?

Vestas,

2 2915

Is 2000kva stabilizer suitable for 1h.p split air conditional

2 2248

what is the usage of microcontroller in the panel board?

1112


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Un-Answered Questions { Electrical Engineering }

What is difference between mcb and mccb.

155


Define bibo stability.

171


what is your majour contributions in your present job

937


Why sometime AVR and sometime Booster coil is used in Alternator? what is the diferance between AVR & Booster coil due to which they are selected

2028


Draw the circuit of clapp oscillator?

178






who can measure the size of power cable?

1064


what are the sample questions asking to the test cunducting for electrical superwising lisence test?

1085


In Transmission System if the potential difference at the two end of line are same then is the transmission of power will continue ? if yes then how.

1065


what topics we have to concentrate for power grid et.written test.and tell what to read for english synonyms and antonyms.

1020


Mention the disadvantages of low power factor? How can it be improved?

175


How to calculate impedance volt in Transformer?

1105


I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?

960


During Testing of Maintenance Free Earthing, How deep should be the Spikes of Earth Test Meter should be inserted in the soil(one spike is 15 Meter & Other spike is 30 Mtrs away from the Main Earth Electrode. Because, recently, we observed that when spike is inserted 3-4 Inch in the earth- results are better, If spike is inserted 1 feet deep than results are increasing.

974


How capacitor improves pf

697


i ha done my 10th with 71% ,ITI with 81% 11th with 75% 12th 43% apprentiship with 71% in SAT i secure 1390 ,TOEFL 27 i was refused four times and in all me interview visa officar told that i am not Qualify for study in USA but i completed my 12th yes i got low persentage in my 12th but i seen to much student they already got visa with them 3 or 4 backlocs so why they are refused me ?

2566