GETCO Exam Paper (22-07-2015) Shunt compensation in EHV line is resorted to Reduce the fault level Improve voltage profile Improve the stability Increase line impedance Reduce the fault level Improve voltage profile Improve the stability Increase line impedance ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) HVDC transmission is preferred to EHV AC because VAR compensation is not required in it Harmonic problem is avoided Its terminal equipment are inexpensive System stability can be improved VAR compensation is not required in it Harmonic problem is avoided Its terminal equipment are inexpensive System stability can be improved ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Which of the following breaking method save energy? plugging regenerative breaking dynamic breaking resistor breaking plugging regenerative breaking dynamic breaking resistor breaking 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
GETCO Exam Paper (22-07-2015) For eliminating 7th harmonics from generated EMF in alternator the fractional pitch must be 2\3 7\8 5\6 6\7 2\3 7\8 5\6 6\7 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 award was not awarded to late Dr. Abdul Kalam? Padma Bhusan Veer Chakra Bharat Ratna Padma Vibhushan Padma Bhusan Veer Chakra Bharat Ratna Padma Vibhushan ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) The power factor of the arc in circuit breaker is always unity always leading always lagging always zero always unity always leading always lagging always zero ANSWER DOWNLOAD EXAMIANS APP
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