Can a generator rated 400 V, 60 Hz be used in a 50 Hz System? Yes or No ? Why ?

1 Answers   VECL,

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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.

6 Answers   NTPC,

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How to select AC3 duty contactor for DOL & Star-Delta starters

1 Answers  

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what is the dis-advantage of 3 phase 3 wire energy meter?

1 Answers   Exide, Nelco,

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what is advantage of providing taping on HT side?

4 Answers  

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Whether power factor should be high or low? Why?

0 Answers  

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In separately excited m/c,we excite the field by a dc source,what not with ac source?

1 Answers  

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why the power factor of the induction motor is low?

1 Answers  

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what is meant by Back emf ?where its occur ?

6 Answers  

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What are the applications of different multistage amplifiers?Plz also write advantages of these amplifiers? Thaaaaaaaaanx

0 Answers  

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The Howland current source produces a A Unidirectional floating load current B Bidirectional single-ended load current C Unidirectional single-ended load current D Bidirectional floating load current

0 Answers  

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What is plc.

2 Answers  

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