GETCO Exam Paper (22-07-2015) Which of the following is the most likely reason for large overshoot in a control system? high retarding torque presence of dead time delay High gain in a system high positive correcting torque high retarding torque presence of dead time delay High gain in a system high positive correcting torque ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) For selecting low voltage cable which of the following factors is not important? voltage grade permissible voltage drop current carrying capacity short circuit current rating voltage grade permissible voltage drop current carrying capacity short circuit current rating ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) For a given transformer volte/turn for primary and secondary winding is depends on transformer design depends on load different same depends on transformer design depends on load different same ANSWER EXPLANATION DOWNLOAD EXAMIANS APP emf = 4.44*f*φ*Temf/T = 4.44*f*φ
GETCO Exam Paper (22-07-2015) Differential equation is required to be solved in _____ economical operation of power systems Finding efficiency of a transmission line Stability studies Load flow studies economical operation of power systems Finding efficiency of a transmission line Stability studies Load flow studies ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) For eliminating 7th harmonics from generated EMF in alternator the fractional pitch must be 7\8 6\7 2\3 5\6 7\8 6\7 2\3 5\6 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) Critical clearing time of a fault in a power system is related to Transient stability limit Steady state limit Reactive power limit Short circuit limit Transient stability limit Steady state limit Reactive power limit Short circuit limit ANSWER DOWNLOAD EXAMIANS APP
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