DGVCL Exam Paper (12-06-2016) The UGVCL is operative in the _____ Gujarat. Northern Southern Central Western Northern Southern Central Western ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) In a transformer the energy is conveyed from primary to secondary Through air By the flux None of these Through cooling coil Through air By the flux None of these Through cooling coil ANSWER EXPLANATION DOWNLOAD EXAMIANS APP function of transfomer is that transfer electrical energy from primary cicuit to secondary through magnetic cicuit by mutual induction
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? 120 Volts 30 Volts 60 Volts 480 Volts 120 Volts 30 Volts 60 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 does not change in a transformer? All of these Voltage Current Frequency All of these Voltage Current Frequency ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In transformer voltage and current can be raised or lowered.Frequency remains samePower and Flux remains almost constant.
DGVCL Exam Paper (12-06-2016) For 11 kV line the capacitance per km per phase will be of the order of: 0.01 Farad 0.01 microF 0.1 Farad 1 Farad 0.01 Farad 0.01 microF 0.1 Farad 1 Farad ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) Efficiency of a power transformer is of the order of : 0.98 1 0.25 0.5 0.98 1 0.25 0.5 ANSWER DOWNLOAD EXAMIANS APP
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