DGVCL Exam Paper (12-06-2016) In case the height of transmission tower is increased, which of the following parameter is likely to change? Capacitance Resistance Inductance None of these Capacitance Resistance Inductance None of these ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) For 11 kV line the capacitance per km per phase will be of the order of: 1 Farad 0.1 Farad 0.01 microF 0.01 Farad 1 Farad 0.1 Farad 0.01 microF 0.01 Farad ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) Transformer core is laminated to _____ Reduce all above losses Reduce copper losses Reduce eddy current losses Reduce hysteresis loss Reduce all above losses Reduce copper losses Reduce eddy current losses Reduce hysteresis loss ANSWER EXPLANATION DOWNLOAD EXAMIANS APP To reduce eddy current loss laminations is done.To reduce hysteresis loss good magnetic material (whose specific hysterisis loss is low) is used.
DGVCL Exam Paper (12-06-2016) Step-down transformer converts high voltage and low current into: High voltage and low current Low voltage and high current None of these How voltage and high current High voltage and low current Low voltage and high current None of these How voltage and high current ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In step up votlage,Output votlage > Input votlageOutput current < Input currentIn step down transformerOutput votlage < Input votlageOutput current > Input current.Power and frequency remains almost constant in stepup or stepdown transformer.
DGVCL Exam Paper (12-06-2016) The permissible voltage variation in transmission and distribution system is: ± 25% ± 0.1% ± 1% ±10% ± 25% ± 0.1% ± 1% ±10% ANSWER EXPLANATION DOWNLOAD EXAMIANS APP This answer is as per official key of respective exam.
DGVCL Exam Paper (12-06-2016) Reactance relay is used for protection against: Over voltage fault None of these Earth fault Phase fault Over voltage fault None of these Earth fault Phase fault ANSWER DOWNLOAD EXAMIANS APP
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