DGVCL Exam Paper (12-06-2016) Transformer core is laminated to _____ Reduce all above losses Reduce hysteresis loss Reduce eddy current losses Reduce copper losses Reduce all above losses Reduce hysteresis loss Reduce eddy current losses Reduce copper losses 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) The Electricity Act is applicable in _____ In Gujarat only All parts of India except state of Jammu and Kashmir All parts of India All the states of India In Gujarat only All parts of India except state of Jammu and Kashmir All parts of India All the states of India ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) Earthing switch is used for? Measuring of safety voltage All of these Discharging residual energies Protection of equipment from ground faults Measuring of safety voltage All of these Discharging residual energies Protection of equipment from ground faults ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The main disadvantages of having poor power factors are: Poor voltage regulation High energy loss in conductor All of these High cost of station and distribution equipment Poor voltage regulation High energy loss in conductor All of these High cost of station and distribution equipment ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The energy radiated by Sun on a bright Sunny day is approximately: 1 kW/m² 2 kW/m² 800 W/m² 700 W/m² 1 kW/m² 2 kW/m² 800 W/m² 700 W/m² ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) Step-down transformer converts high voltage and low current into: Low voltage and high current How voltage and high current None of these High voltage and low current Low voltage and high current How voltage and high current None of these High voltage and low 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.
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