DGVCL Exam Paper (12-06-2016) The friction losses in Real Transformers are : 0.5 0.05 0.25 0 0.5 0.05 0.25 0 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP As there is no rotating part in transformer, there is no friction and windage loss
DGVCL Exam Paper (12-06-2016) The core construction is like spokes of a wheel in following transformer: Shell Type Transformer Berry Type Transformer None of these Core Type Transformer Shell Type Transformer Berry Type Transformer None of these Core Type Transformer ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) For cost & safety, the outdoor substations are installed for voltages above: 110 kV 60 kV 11 kV 33 kV 110 kV 60 kV 11 kV 33 kV ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) A 100-watt light bulb turned on for 8 hours uses : 8 kWh None of these 0.8 kWh 800 Wh 8 kWh None of these 0.8 kWh 800 Wh ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In Solution 0.8 kWh and 800 Wh both options are given as answer as both are correct
DGVCL Exam Paper (12-06-2016) The kVA rating of Three-phase transformer with Voltage = 200 V and Current = 100 A will be : 20 kVA 75 kVA None of these 34.64 kVA 20 kVA 75 kVA None of these 34.64 kVA ANSWER EXPLANATION DOWNLOAD EXAMIANS APP For three phase,VA = √3 V IFor single phase, kVA = V I
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
EXAMIANS