GETCO Exam Paper (22-07-2015) For formation of the Y bus matrix (using node voltage analysis) in power system network modelling _____ is used KCL all are correct Faraday's law KVL KCL all are correct Faraday's law KVL ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) HVDC transmission is preferred to EHV AC because System stability can be improved Harmonic problem is avoided VAR compensation is not required in it Its terminal equipment are inexpensive System stability can be improved Harmonic problem is avoided VAR compensation is not required in it Its terminal equipment are inexpensive ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Speed of induction motor at rated torque is _____ than at maximum torque. depends on load same lesser greater depends on load same lesser greater 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) In a DC motor, back EMF value becomes maximum at _____ no load full load 3/4 load 1/2 load no load full load 3/4 load 1/2 load ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Answer in official key is “1/2 load ”.
GETCO Exam Paper (22-07-2015) In sub stations for making and breaking of load current isolators are used load interrupter switches are used relays are used circuit breakers are used isolators are used load interrupter switches are used relays are used circuit breakers are used ANSWER DOWNLOAD EXAMIANS APP
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