GMR PATTERN – 15 SEP 2008
I appeared for GMR- Airport.
Pattern is
1. Written exam (q’s 4m Power system, control system, EMFT, Analog, Electrical machines)
2. Tech+HR Interview
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…)