What is Ton Capacity of Air Conditioner?

1 Answers   TATA,

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what you mean by frequency of an igbt& how to find it?

1 Answers  

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how a vibration switch's high signal will going to trip the motor? can u explain with some examplesand wiring diagrams?

1 Answers   Bhel, Wartsila,

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why in an industry; machine having rated 200 h.p stopped after power factor is maintained above 0.97 lag by control panel in view-of energy saving

0 Answers   HCL,

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Explain marx circuit.

0 Answers  

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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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What is the exact formula for one weber of magnetic flux?

0 Answers   Bhel,

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Can we step up a 230V supply to 400V using a single phase transformer??

2 Answers  

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How to work E.L.C.B and how to connect in circuit.

0 Answers  

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Is current shock due to voltage or current? pls answer

2 Answers   ABB,

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Can 2 nos. of 1 ton split ac be used through a 20 am supply meter?

3 Answers  

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IN bateery size of positive is biger than negative .why?

8 Answers   Power Grid,

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