DGVCL Exam Paper (12-06-2016) The transformer works on the principle of: Mutual induction None of these All of these Mutual capacitance Mutual induction None of these All of these Mutual capacitance ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Transformer is static device.two or more stationary electrical circuit mutually linked by magnetic circuit.assumptions of ideal transformer:1. there are no losses.2. whole magnetic flux constant no leakage.3. permeability of core is infinite.
DGVCL Exam Paper (12-06-2016) A 17 inch personal computer uses approximately 150 watts in an hour. If you have same computer on for only 4 minutes (for checking e-mail) what would be the power consumption? 0.04 kW None of these 0.1 kW 0.01 kW 0.04 kW None of these 0.1 kW 0.01 kW ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) Which of the following is not a part of transformer installation? Buchholz Relay Conservator Breather Exciter Buchholz Relay Conservator Breather Exciter ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Exciter is used in alternator for field supply.
DGVCL Exam Paper (12-06-2016) The core construction is like spokes of a wheel in following transformer: Core Type Transformer None of these Shell Type Transformer Berry Type Transformer Core Type Transformer None of these Shell Type Transformer Berry Type Transformer ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The registered office of MGVCL is in _____ Vadodara Valsad Ahmedabad Godhra Vadodara Valsad Ahmedabad Godhra ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Company : Registered OffficePGVCL : RajkotMGVCL : VadodaraDGVCL : SuratUGVCL : MehsanaGETCO : VadodaraGUVNL : Vadodara
DGVCL Exam Paper (12-06-2016) The kVA rating of Three-phase transformer with Voltage = 200 V and Current = 100 A will be : 75 kVA 34.64 kVA 20 kVA None of these 75 kVA 34.64 kVA 20 kVA None of these ANSWER EXPLANATION DOWNLOAD EXAMIANS APP For three phase,VA = √3 V IFor single phase, kVA = V I
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