GETCO Exam Paper (30-11-2008) Which loss in a transformer varies significantly with load? Core loss Copper loss Eddy current loss Hysteresis loss Core loss Copper loss Eddy current loss Hysteresis 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.
GETCO Exam Paper (30-11-2008) In the parallel operation of transformers, which statement is false None of these transformers kVA ratings equal transformers transformation ratios same transformers voltage ratings same None of these transformers kVA ratings equal transformers transformation ratios same transformers voltage ratings same ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) The effect of wind pressure is more predominant on transmission lines insulator neutral wires supporting towers transmission lines insulator neutral wires supporting towers ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) An air blast C.B. is usually employed for _____ duty short instantaneous repeated intermittent short instantaneous repeated intermittent ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) If a power system is transiently stable, it may be dynamically unstable both (a) & (c ) will oscillate beyond the first swing is always dynamically stable may be dynamically unstable both (a) & (c ) will oscillate beyond the first swing is always dynamically stable ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) If a combination of HRC fuse and a C.B. is employed, the C.B. operates for this combination is never employed in practice under all abnormal currents low over load currents short circuit currents this combination is never employed in practice under all abnormal currents low over load currents short circuit currents ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS