DGVCL Exam Paper (12-06-2016) A certain transformer has 200 turns in the primary winding, 50 turns in the secondary winding and 120 volts applied to the primary. What is the voltage across the secondary? 60 Volts 120 Volts 480 Volts 30 Volts 60 Volts 120 Volts 480 Volts 30 Volts ANSWER EXPLANATION DOWNLOAD EXAMIANS APP For transformer, V2/V1 = N2/N1V2/120 = 50/200V2 = 30 V
DGVCL Exam Paper (12-06-2016) Which unit holds data permanently? Primary Memory Unit Secondary storage unit Input unit Output Unit Primary Memory Unit Secondary storage unit Input unit Output Unit ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) Transformer core is laminated to _____ Reduce copper losses Reduce all above losses Reduce eddy current losses Reduce hysteresis loss Reduce copper losses Reduce all above 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) The following formula is correct: Load factor = Average load for a period x Peak load for the same period Load factor = Average load for a period + Peak load for the same period All of these Load facto r= Average load for a period/Peak load for the same period Load factor = Average load for a period x Peak load for the same period Load factor = Average load for a period + Peak load for the same period All of these Load facto r= Average load for a period/Peak load for the same period ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The SI unit of energy is : Joule Coulomb Henry Newton Joule Coulomb Henry Newton ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) An _____ is a network of electrical components used to supply, transfer and use electric power: All of these Electric power Electric power system None of these All of these Electric power Electric power system None of these ANSWER DOWNLOAD EXAMIANS APP
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