GETCO Exam Paper (30-11-2008) Ashoka sent his son and daughter for the preaching of Buddhism to Kambodia Ceylon Javadvipa Sumatra Kambodia Ceylon Javadvipa Sumatra ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) The recovery voltage will be maximum for p.f. of zero 0.707 unity 0.5 zero 0.707 unity 0.5 ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) When a star delta transformer bank of three single phase transformers is to be used for step down transformation with line voltages of 23000 V and 2300 V, the ratio of transformation will be 12.1:1 10.0:1 5.8:1 17.2:1 12.1:1 10.0:1 5.8:1 17.2:1 ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) The arc voltage in a C.B. is _____ with the arc current leading by 90˚ none of these in phase lagging by 90˚ leading by 90˚ none of these in phase lagging by 90˚ ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) Which of the following connection of transformer will give the highest secondary voltage? star primary, delta secondary Delta primary, delta secondary Delta primary, star secondary star primary, star secondary star primary, delta secondary Delta primary, delta secondary Delta primary, star secondary star primary, star secondary ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) Which loss in a transformer varies significantly with load? Copper loss Core loss Hysteresis loss Eddy current loss Copper loss Core loss Hysteresis loss Eddy current loss ANSWER EXPLANATION DOWNLOAD EXAMIANS APP During O.C test obtained no load losses (core loss)During S.C. test obtained copper loss (load losses)during loaded condition of transformer copper loss more significant than core loss.
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