DGVCL Exam Paper (12-06-2016) What will happen if the primary of a transformer is connected to DC supply? Transformer will operate with low efficiency No effect Transformer may start to smoke and burn Transformer will operate with high efficiency Transformer will operate with low efficiency No effect Transformer may start to smoke and burn Transformer will operate with high 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) A relay used for protection of motors against overload is : Impedance relay Thermal relay Electromagnetic attraction type Buchholz's relay Impedance relay Thermal relay Electromagnetic attraction type Buchholz's relay ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The process of a computer receiving information from a server via Internet is known as: Downloading Uploading All of these Retrieving Downloading Uploading All of these Retrieving ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) Directional relays are based on flow of Power Current All of these Voltage Power Current All of these Voltage ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) kWh meter is the electric meter that measures the amount of electrical _____ in kWh that was consumed in the house. Current Energy Voltage None of these Current Energy Voltage None of these ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The registered office of MGVCL is in _____ Ahmedabad Valsad Godhra Vadodara Ahmedabad Valsad Godhra Vadodara ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Company : Registered OffficePGVCL : RajkotMGVCL : VadodaraDGVCL : SuratUGVCL : MehsanaGETCO : VadodaraGUVNL : Vadodara
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