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 30 Volts 120 Volts 480 Volts 60 Volts 30 Volts 120 Volts 480 Volts ANSWER EXPLANATION DOWNLOAD EXAMIANS APP For transformer, V2/V1 = N2/N1V2/120 = 50/200V2 = 30 V
DGVCL Exam Paper (12-06-2016) Which of the following circuit breakers has high reliability & minimum maintenance? Air blast CB Sulphur hexafluoride CB Vacuum CB Bulk oil type CB Air blast CB Sulphur hexafluoride CB Vacuum CB Bulk oil type CB ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) Transformer has _____ Primary winding and secondary winding Auxiliary winding and secondary winding None of these Primary winding and Auxiliary winding Primary winding and secondary winding Auxiliary winding and secondary winding None of these Primary winding and Auxiliary winding ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The consumer of electricity could be: Industrial and Commercial All of these Agricultural Domestic Industrial and Commercial All of these Agricultural Domestic ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The core construction is like spokes of a wheel in following transformer: Core Type Transformer Berry Type Transformer Shell Type Transformer None of these Core Type Transformer Berry Type Transformer Shell Type Transformer None of these 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.
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