GETCO Exam Paper (22-07-2015) For given kVAR and line voltage the ratio of star to delta value of capacitor is 1.73 3 0.33333333333333 1 1.73 3 0.33333333333333 1 ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) In a DC motor, back EMF value becomes maximum at _____ no load full load 1/2 load 3/4 load no load full load 1/2 load 3/4 load ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Answer in official key is “1/2 load ”.
GETCO Exam Paper (22-07-2015) For eliminating 7th harmonics from generated EMF in alternator the fractional pitch must be 2\3 7\8 6\7 5\6 2\3 7\8 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) The rating of given on the name plate of a transformer indicates the: Apparent power which it draws from the supply mains True power which it can supply Apparent power which it can supply True power whichh it draws from the supply mains Apparent power which it draws from the supply mains True power which it can supply Apparent power which it can supply True power whichh it draws from the supply mains ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The rating of given on the name plate of a transformer indicates the:Apparent power which it can supply S=V( supplied voltage)*I (load current)active power = v* i*cosφreactive power = v* i*sinφ
GETCO Exam Paper (22-07-2015) The relay which is most sensitive to power swings (mal operation) is Mho Relay Reactance Relay Over current Relay Impedance Relay Mho Relay Reactance Relay Over current Relay Impedance Relay ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Merz-Price protection is employed for protection of transmission lines circuit breaker motor alternators transmission lines circuit breaker motor alternators ANSWER DOWNLOAD EXAMIANS APP
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