Based on CPI/CGPA they shortlist the candidates & than
directly start Interview so there is no Written Exam or GD
Only PI.Interview held @ MNNIT , ALLAHABAD On-Campus on
6th,Aug, 2007 & the Questions asked to me by Interview Board
( 4 People) are from HR/SummerTraining/BTP/Subject-core,
POWER SYSTEM & MACHINE. time duration of I/V is about 15-20
Minutes.
HR-
Q.1 Name,hobbies & About family background ?
Q2.What u know abt NTPC ??
Q3.Why u want to choose NTPC as ur Carrier's starting i.e
power sector not any other Oragnisation or sector ??
Techincal Questions-
Q1.What is the reason for transformer Noise ??
Q2.Which material is used for making Transformer oil & How u
measure its dielectric strength & Name the test ?
Q.3 Which Machine u will prefer 2 use if flammble gases are
coming out at a place & why ??
Q4.What is relation b/w Transmission Lines & Communication
Lines ?
Q5.What is the maximum capacity Synchronus Machine & total
powerGeneration in our country ?
Q.6 In india Power generation is at 50Hz while in America
its 60 hz ,why so ?? Advantage or disadvantage ??
Q.7 Maximum Generation Voltage in india ?
Q8. What is the Voltage regulation & why its required n how
much is permissible ? & causes of voltage variation ??
Q.9 Why electric shock is feel ?? n in a Electric Train why
we didnt feel that ?
Q.10 Have u seen/ experience of any power plant/ industry
related to the power sector ?
so these are the questions which not too diffcult i
think was asked to me.
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Answer Posted / yuvaraj kamle
Answer for Q1
when we will give the supply at primary side the transformer core will COMPRESS and ELONGATION and this
is called MAGNETO DESTRUCTION,DUE to this reason the transformer make noise.
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