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) In India _____ supply is 415 V supply through 4-wires. None of these Three - phase Two-phase Single - phase None of these Three - phase Two-phase Single - phase ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) Core type transformers are popular in _____ All of these None of these Low voltage applications High voltage applications All of these None of these Low voltage applications High voltage applications ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The core construction is like spokes of a wheel in following transformer: Berry Type Transformer None of these Shell Type Transformer Core Type Transformer Berry Type Transformer None of these Shell Type Transformer Core Type Transformer ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The following is/are the characteristics of SF₆ circuit breakers: None of these All of these It does not need an auxiliary breaking chamber Short break time of 2 to 2.5 cycles None of these All of these It does not need an auxiliary breaking chamber Short break time of 2 to 2.5 cycles ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The main advantage of AC over DC is: AC is easy to maintain & can be easily distributed at long distances All of these Conversion flexibility from one voltage level to other AC can be easily converted into DC by using a rectifier AC is easy to maintain & can be easily distributed at long distances All of these Conversion flexibility from one voltage level to other AC can be easily converted into DC by using a rectifier ANSWER DOWNLOAD EXAMIANS APP
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