GETCO Exam Paper (22-07-2015) The value of holding ratio of relay is always greater than 1 Infinite zero less than 1 greater than 1 Infinite zero less than 1 ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) No load efficiency of tranformer is _____ than full load efficiency same greater lesser depends on load same greater lesser depends on load 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 7\8 6\7 2\3 5\6 7\8 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) HVDC transmission is preferred to EHV AC because VAR compensation is not required in it Its terminal equipment are inexpensive Harmonic problem is avoided System stability can be improved VAR compensation is not required in it Its terminal equipment are inexpensive Harmonic problem is avoided System stability can be improved ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Shunt capacitors in a substation deliver active power delivers lagging VAR consumes lagging VAR consume active power deliver active power delivers lagging VAR consumes lagging VAR consume active power ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) The instantaneous value of power in purely inductive circuit is none of this changing zero constant none of this changing zero constant ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The instantaneous value of power in purely inductive circuit is changing as it is given as v*i. The average power of purely inductive circuit over a cycle is zero
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