DGVCL Exam Paper (12-06-2016) Transformer core is laminated to _____ Reduce copper losses Reduce hysteresis loss Reduce all above losses Reduce eddy current losses Reduce copper losses Reduce hysteresis loss Reduce all above losses Reduce eddy current 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) A relay used for protection of motors against overload is : Thermal relay Impedance relay Buchholz's relay Electromagnetic attraction type Thermal relay Impedance relay Buchholz's relay Electromagnetic attraction type ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) In case the height of transmission tower is increased, which of the following parameter is likely to change? Inductance Capacitance None of these Resistance Inductance Capacitance None of these Resistance ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) _____ electric power is the most common method used by electrical grids to transfer power One-phase Three-phase None of these Two-phase One-phase Three-phase None of these Two-phase ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) One kilowatt-hour is? 2.6 mega joules 1.6 mega joules 3.6 mega joules None of these 2.6 mega joules 1.6 mega joules 3.6 mega joules None of these ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The time of closing the cycle, in modern circuit breakers is 0.1 sec. 0.01 sec. 0.003 sec. 0.001 sec. 0.1 sec. 0.01 sec. 0.003 sec. 0.001 sec. ANSWER DOWNLOAD EXAMIANS APP
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