DGVCL Exam Paper (12-06-2016) About how many times longer would a 10 watt light bulb be able to burn compared to a 100 watt bulb with the same energy? Same time 10 times longer 100 times longer None of these Same time 10 times longer 100 times longer None of these ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) A certain transformer has 200 turns in the primary winding, 50 turns in the secondary winding and 120 volts applied to the primary. What is the voltage across the secondary? 120 Volts 60 Volts 480 Volts 30 Volts 120 Volts 60 Volts 480 Volts 30 Volts ANSWER EXPLANATION DOWNLOAD EXAMIANS APP For transformer, V2/V1 = N2/N1V2/120 = 50/200V2 = 30 V
DGVCL Exam Paper (12-06-2016) DGVCL is not distributing electricity in _____ district. Valsad Tapi Navsari Vadodara Valsad Tapi Navsari Vadodara ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) GUVNL is: None of these Gujarat Urja Vikas Nikash Limited Gujarat Urja Vikas Nigam Limited Gujarat Urja Vyapar Nigam Limited None of these Gujarat Urja Vikas Nikash Limited Gujarat Urja Vikas Nigam Limited Gujarat Urja Vyapar Nigam Limited 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
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 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 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) Wave trap is used to trap waves of: None of these Power frequencies All of these Higher frequencies entering generator or transformer units None of these Power frequencies All of these Higher frequencies entering generator or transformer units ANSWER DOWNLOAD EXAMIANS APP
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