DGVCL Exam Paper (12-06-2016) What will happen if the primary of a transformer is connected to DC supply? Transformer will operate with high efficiency No effect Transformer may start to smoke and burn Transformer will operate with low efficiency Transformer will operate with high efficiency No effect Transformer may start to smoke and burn Transformer will operate with low efficiency ANSWER EXPLANATION DOWNLOAD EXAMIANS APP transformer works on principle of faraday's law of electromagnetic induction. So if D.C supply use, no indction are produced and due to this E.M.F not induced in winding and transfer of electrical energy is not possible.
DGVCL Exam Paper (12-06-2016) The consumer of electricity could be: All of these Domestic Agricultural Industrial and Commercial All of these Domestic Agricultural Industrial and Commercial ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) In a transformer the energy is conveyed from primary to secondary None of these By the flux Through cooling coil Through air None of these By the flux Through cooling coil Through air 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) Wave trap is used to trap waves of: Higher frequencies entering generator or transformer units Power frequencies None of these All of these Higher frequencies entering generator or transformer units Power frequencies None of these All of these ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) In India _____ supply is 415 V supply through 4-wires. Two-phase None of these Single - phase Three - phase Two-phase None of these Single - phase Three - phase ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) GUVNL is: Gujarat Urja Vyapar Nigam Limited Gujarat Urja Vikas Nikash Limited Gujarat Urja Vikas Nigam Limited None of these Gujarat Urja Vyapar Nigam Limited Gujarat Urja Vikas Nikash Limited Gujarat Urja Vikas Nigam Limited None of these ANSWER EXPLANATION DOWNLOAD EXAMIANS APP PGVCL: Paschim Gujarat Vij Company LimitedMGVCL: Madhya Gujarat Vij Company LimitedUGVCL: Uttar Gujarat Vij Company LimitedDGVCL: Dakshin Gujarat Vij Company LimitedGETCO: Gujarat Energy Transmission CorportationGSECL: Gujarat State Elecricity Corporation Limited
EXAMIANS