DGVCL Exam Paper (12-06-2016) In a transformer the energy is conveyed from primary to secondary By the flux Through air Through cooling coil None of these By the flux Through air Through cooling coil None of these 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) The friction losses in Real Transformers are : 0 0.25 0.5 0.05 0 0.25 0.5 0.05 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: None of these Berry Type Transformer Shell Type Transformer Core Type Transformer None of these Berry Type Transformer Shell Type Transformer Core Type Transformer ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The rating of transformer may be expressed in _____ Horse power kVAR kVA kW Horse power kVAR kVA kW ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Equipment : RatingTransformer : kVAAlternator : kVAMotor : kW/HPBattery : ampere-hour
DGVCL Exam Paper (12-06-2016) Which of the following does not change in a transformer? Voltage All of these Frequency Current Voltage All of these Frequency Current 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 microF 0.1 Farad 0.01 Farad 1 Farad 0.01 microF 0.1 Farad 0.01 Farad 1 Farad ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS