DGVCL Exam Paper (12-06-2016) A relay used for protection of motors against overload is : Electromagnetic attraction type Buchholz's relay Impedance relay Thermal relay Electromagnetic attraction type Buchholz's relay Impedance relay Thermal relay ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) In a transmission line if booster transformers are to be used, preferred location will be At the receiving end Anywhere in the line At the sending end At the intermediate point At the receiving end Anywhere in the line At the sending end At the intermediate point ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The number of cycles in which a high speed circuit breaker can complete its operation is 3 to 8 20 to 30 40 to 50 10 to 18 3 to 8 20 to 30 40 to 50 10 to 18 ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) In India _____ supply is 415 V supply through 4-wires. Three - phase Two-phase None of these Single - phase Three - phase Two-phase None of these Single - phase ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) Transformer core is laminated to _____ Reduce copper losses 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 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) The following formula is correct: Diversity factor = 1/Coincidence Factor All of these Diversity factor = 1 x Coincidence Factor Diversity factor = 1 - Coincidence Factor Diversity factor = 1/Coincidence Factor All of these Diversity factor = 1 x Coincidence Factor Diversity factor = 1 - Coincidence Factor ANSWER DOWNLOAD EXAMIANS APP
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