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 5\6 7\8 6\7 2\3 5\6 7\8 6\7 2\3 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 of the following is the most likely reason for large overshoot in a control system? high positive correcting torque high retarding torque High gain in a system presence of dead time delay high positive correcting torque high retarding torque High gain in a system presence of dead time delay ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) The surge impedance loading of the line will _____ if the length of the line is double remains same four times double become half remains same four times double become half ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Surge impedance is independent of length of the line
GETCO Exam Paper (22-07-2015) Which of the following is the wrong statement in terms of slack bus? it should be located at the centre of the area voltage and angle is specified at this bus it should be the largest generator bus in the system it has finite reactive power generation capability it should be located at the centre of the area voltage and angle is specified at this bus it should be the largest generator bus in the system it has finite reactive power generation capability ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) In case of a balanced three phase sinusoidal AC supply, because of the phase difference neutral wire is not required, if load is balanced all are correct rotating magnetic field is produced neutral current is high if load is not balanced neutral wire is not required, if load is balanced all are correct rotating magnetic field is produced neutral current is high if load is not balanced ANSWER DOWNLOAD EXAMIANS APP
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