GETCO Exam Paper (30-11-2008) Interconnected power systems operating with "tie line bias" will respond to both frequency and tie line load changes frequency changes only tie line voltage changes only tie line load changes only both frequency and tie line load changes frequency changes only tie line voltage changes only tie line load changes only ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) The C.B.s which produces the least arc energy are minimum oil plain oil air blast air break minimum oil plain oil air blast air break ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) Transfer of power between two power systems takes place with power flowing from the system with the Lagging power angle Higher input current Higher voltage level Greater leading power angle Lagging power angle Higher input current Higher voltage level Greater leading power angle ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) The voltage regulation of a transformer at full load and 0.8 power factor lagging is 2.5%. The voltage regulation at full load, 0.8 power factor leading will be 2.5% 0.01 zero -2.5% 2.5% 0.01 zero -2.5% 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 output is out of phase with respect to input efficiency of transformer is usually high and hence extremely accurate measurements will be necessary the output is sinusoidal and hence cannot be measured losses are abnormally high output is out of phase with respect to input efficiency of transformer is usually high and hence extremely accurate measurements will be necessary the output is sinusoidal and hence cannot be measured losses are abnormally high ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) An AC transmission line requires a VAR input: to reduce losses to improve the regulation to improve stability to increase power transmission to reduce losses to improve the regulation to improve stability to increase power transmission ANSWER DOWNLOAD EXAMIANS APP
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