DGVCL Exam Paper (12-06-2016) Gujarat State Electricity Corp. Ltd. (GSECL) is a _____ Power Generation Company Distribution Company Regulatory Commission Transmission Company Power Generation Company Distribution Company Regulatory Commission Transmission Company ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Distribuition Companies: PGVCL, MGVCL, UGVCL, DGVCLTransmission: GETCOGeneration: GSECL
DGVCL Exam Paper (12-06-2016) What will happen if the primary of a transformer is connected to DC supply? Transformer may start to smoke and burn No effect Transformer will operate with low efficiency Transformer will operate with high efficiency Transformer may start to smoke and burn No effect Transformer will operate with low efficiency 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) In case the height of transmission tower is increased, which of the following parameter is likely to change? None of these Inductance Capacitance Resistance None of these Inductance Capacitance Resistance ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) Transformer core is laminated to _____ Reduce eddy current losses Reduce all above losses Reduce hysteresis loss Reduce copper losses Reduce eddy current losses Reduce all above losses Reduce hysteresis loss Reduce copper losses ANSWER EXPLANATION DOWNLOAD EXAMIANS APP To reduce eddy current loss laminations is done.To reduce hysteresis loss good magnetic material (whose specific hysterisis loss is low) is used.
DGVCL Exam Paper (12-06-2016) For 11 kV line the capacitance per km per phase will be of the order of: 0.1 Farad 0.01 Farad 0.01 microF 1 Farad 0.1 Farad 0.01 Farad 0.01 microF 1 Farad ANSWER DOWNLOAD EXAMIANS APP
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? 0.1 kW 0.01 kW None of these 0.04 kW 0.1 kW 0.01 kW None of these 0.04 kW ANSWER DOWNLOAD EXAMIANS APP
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