GMR  Placement Paper   General - Other   Not Specified-15 Sep 2008

GMR  Placement Paper   General - Other   Not Specified-15 Sep 2008

  • Posted by  FreshersWorld 
    7 Jan, 2012


    Hi i appeared for GMR- Airport. 
    Pattern is
    1.Written exam (q's 4m Power system, control system, EMFT, Analog, Electrical machines)
    3.Hard core Tech Interview
    (toughest of all)

    some of interview q's are as follows
    Starting Methods of IM
    Speed Control of IM
    application of IM
    types Of circuit breaker n thr working
    Relays, fuses
    q's 4m power electronics 
    (application of phase control rectifiers, inverters, cycloconvertor, ac regulator, chooper)
    Transformer efficiency and losses 
    cooling of transformer,
    cooling of alternator,
    synchronizing procedure 4 alternator..
    what is power factor?
    q's on transformer banks
    why synchronous motor is not self starting??
    why IM is self staring>??
    Is transformer is a electrical machine ??(it is ..em )
    i was asked 2 make a SLD 
    layout of thermal power station
    q's 4m opamp
    Types of UPS
    dc motor applications (like where would we used dc series, shunt, compound etc...)

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