GETCO Exam Paper (22-07-2015) For eliminating 7th harmonics from generated EMF in alternator the fractional pitch must be 2\3 7\8 5\6 6\7 2\3 7\8 5\6 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) Which of the following cable is extensively used for high tension and low tension work? TRS cable VIR cable PVC cable XLPE cable TRS cable VIR cable PVC cable XLPE cable ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Fuel cell for power generation have drawback of _____ Very high development costs Low life span Synchronization problems Noise, pollution and maintenance problems Very high development costs Low life span Synchronization problems Noise, pollution and maintenance problems ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Steady state stability of a power system is improved by decreasing generator inertia by fast switching reducing fault clearing time using double circuit line instead of single circuit line decreasing generator inertia by fast switching reducing fault clearing time using double circuit line instead of single circuit line ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) In a DC motor, back EMF value becomes maximum at _____ full load 1/2 load no load 3/4 load full load 1/2 load no load 3/4 load ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Answer in official key is “1/2 load ”.
GETCO Exam Paper (22-07-2015) In which of the following festivals are boat races a special feature? Navaratri Rongali Bihu Pongal Onam Navaratri Rongali Bihu Pongal Onam ANSWER DOWNLOAD EXAMIANS APP
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