GETCO Exam Paper (30-11-2008) The first oil refinery in India was set up at Vishakhapatnam Barauni Diboi Bombay (Mumbai) Vishakhapatnam Barauni Diboi Bombay (Mumbai) ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) In a transformer it is difficult to measure the efficiency by output-input measurement methods because efficiency of transformer is usually high and hence extremely accurate measurements will be necessary losses are abnormally high the output is sinusoidal and hence cannot be measured output is out of phase with respect to input efficiency of transformer is usually high and hence extremely accurate measurements will be necessary losses are abnormally high the output is sinusoidal and hence cannot be measured output is out of phase with respect to input ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) Directional over current relays have two exciting coils connected across _____ secondary's of two _____ phases T. & P.T., different T., different T. & P.T., same P.T., different T. & P.T., different T., different T. & P.T., same P.T., different ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) In an over current protection, the setting of earth fault relay is _____ the phase fault relay. more than less than equal to not related in more than less than equal to not related in ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) Which loss in a transformer varies significantly with load? Core loss Hysteresis loss Copper loss Eddy current loss Core loss Hysteresis loss Copper 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.
GETCO Exam Paper (30-11-2008) If the fault occurs near the relay, the V/I ratio will be _____ that of if the fault occurs away from the relay. lower than higher than equal to none of these lower than higher than equal to none of these ANSWER DOWNLOAD EXAMIANS APP
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