GETCO Exam Paper (22-07-2015) Shunt compensation in EHV line is resorted to Improve the stability Improve voltage profile Increase line impedance Reduce the fault level Improve the stability Improve voltage profile Increase line impedance Reduce the fault level ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) In a DC motor, back EMF value becomes maximum at _____ full load 1/2 load 3/4 load no load full load 1/2 load 3/4 load no load ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Answer in official key is “1/2 load ”.
GETCO Exam Paper (22-07-2015) Differential equation is required to be solved in _____ Stability studies Load flow studies Finding efficiency of a transmission line economical operation of power systems Stability studies Load flow studies Finding efficiency of a transmission line economical operation of power systems ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Two heaters rated at 500 W, 250 V each are conneted in series across a 250 V, 50 Hz mains. The total power drawn from the supply would be _____ watt. 125 500 1000 250 125 500 1000 250 ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) For eliminating 7th harmonics from generated EMF in alternator the fractional pitch must be 2\3 5\6 6\7 7\8 2\3 5\6 6\7 7\8 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP fractional pitch = Cos( α/2)α is obtain from: (nα/2)=90˚ where n is harmonicα=25.7143˚fractional pitch=6/7
GETCO Exam Paper (22-07-2015) Which of the following breaking method save energy? regenerative breaking resistor breaking dynamic breaking plugging regenerative breaking resistor breaking dynamic breaking plugging ANSWER EXPLANATION DOWNLOAD EXAMIANS APP three types of electric breaking:Regenerative breaking( leads to economic and energy consevation)pugging (more efficient method of breaking)rheostatic breaking
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