GETCO Exam Paper (22-07-2015) For eliminating 7th harmonics from generated EMF in alternator the fractional pitch must be 5\6 7\8 2\3 6\7 5\6 7\8 2\3 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) A transformer has negative voltage regulation when its load PF is lagging zero unity leading lagging zero 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) Laplace transforms is used for finding transfer function of any systems converting non linear equation to linear equation for finding initial condition in a system converting diffential equation to algebraic equation finding transfer function of any systems converting non linear equation to linear equation for finding initial condition in a system converting diffential equation to algebraic equation ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) The constraints that are to be met with while solving UC problem are Spinning reserve all are correct Minimum up time Minimum down time Spinning reserve all are correct Minimum up time Minimum down time ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) The recent (as on 22/07/2015) Mahakumbh is held at Alahabad Haridwar Nasik Ujjain Alahabad Haridwar Nasik Ujjain ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) The Z matrix of 2 port network is given by [0.9 0.2 : 0.2 0.6]. The element Y22 of the corresponding Y matrix of the same network is given by 1.2 0.4 1.8 -0.4 1.2 0.4 1.8 -0.4 ANSWER DOWNLOAD EXAMIANS APP
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