DGVCL Exam Paper (12-06-2016) Which unit holds data permanently? Primary Memory Unit Output Unit Input unit Secondary storage unit Primary Memory Unit Output Unit Input unit Secondary storage unit ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The following is a Distribution Company: GERC DERC CSERC MGVCL GERC DERC CSERC MGVCL ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) As per Electricity Act, _____ means a person who has been granted a license to undertake trading in electricity under section 12. None of these All of these Electricity trader Electricity supplier None of these All of these Electricity trader Electricity supplier ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) Step-down transformer converts high voltage and low current into: High voltage and low current How voltage and high current None of these Low voltage and high current High voltage and low current How voltage and high current None of these Low 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) What would happen if a power transformer designed for operation on 50 Hz (frequency) were connected to a 500 Hz (frequency) source of the same voltage: Eddy Current and Hysteresis losses will be excessive Transformer may start to smoke and burn Current will be too much high No effect Eddy Current and Hysteresis losses will be excessive Transformer may start to smoke and burn Current will be too much high No effect ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Core loss of transformer = Hysteresis loss + eddy current lossHysteresis loss prpotional to feddy current loss prpotional to f².
DGVCL Exam Paper (12-06-2016) Which of the following 3-phase connection of a transformer causes interference with the neighbouring communication lines: Star-Star Star-Delta Delta-Delta Delta-Star Star-Star Star-Delta Delta-Delta Delta-Star ANSWER DOWNLOAD EXAMIANS APP
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