GETCO Exam Paper (22-07-2015) A transformer has negative voltage regulation when its load PF is zero lagging unity leading zero lagging unity leading ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Voltage regulation = ((no load voltage)-(full load voltage)/(no load voltage))VR at leading PF = ((I*R*cosφ)-(I*X*sinφ))/VVR at lagging PF = ((I*R*cosφ)+(I*X*sinφ))/V
GETCO Exam Paper (22-07-2015) In a power system network, at which bus the shunt is connected that can be known from reactive power demand Y bus of the system none of these type of bus reactive power demand Y bus of the system none of these type of bus ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Light from the nearest star (other than the sun) reaches the earth in 4.2 hours 4.2 minutes 42 secs 4.2 years 4.2 hours 4.2 minutes 42 secs 4.2 years ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Normally the angle of the transmission line is kept _____ because of _____ reasons 45, steady state stability 90, steady state stability 45, transient stability 90, transient stability 45, steady state stability 90, steady state stability 45, transient stability 90, transient stability 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 2\3 6\7 5\6 7\8 2\3 6\7 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) Which Indian hindi movie is released most recently (as on 22/07/2015)? Bajarangi Bhaijaan Aisa Yeh Jahaan Drishyam Bin Roye Bajarangi Bhaijaan Aisa Yeh Jahaan Drishyam Bin Roye ANSWER DOWNLOAD EXAMIANS APP
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