Interview Questions Answers in Electrical Engineering

mohideen

{ City } chennai
< Country > india
* Profession * student
User No # 25675

Total Questions Posted # 0
Total Answers Posted # 3

Total Answers Posted for My Questions # 0
Total Views for My Questions # 0

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Users Marked my Answers as Wrong # 40

Questions / { mohideen }

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Answers / { mohideen }

Question { 11338 }

Why do we have 110V, 230V, 415V etc. in electrical
transmissions? Why not 100V, 200V,400V?

Answer

it is due to the form factor always being 1.1

Is This Answer Correct ?

61 Yes

3 No

Question { L&T, 25077 }

In india the power supply is always in multiple of 11,
eg.220 V, 440 V...
what is the reason?

Answer

this is due to the power factor of a pure sin wave is being 1.1

Is This Answer Correct ?

12 Yes

33 No

Question { L&T, 25077 }

In india the power supply is always in multiple of 11,
eg.220 V, 440 V...
what is the reason?

Answer

that is due to the form factor of a pure sine wave is 1.1.
form factor is given by the expression form factor=(rms/average)

Is This Answer Correct ?

19 Yes

4 No