DGVCL Exam Paper (12-06-2016) Reactance relay is used for protection against: Over voltage fault Phase fault None of these Earth fault Over voltage fault Phase fault None of these Earth fault ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) Transformer core is laminated to _____ 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 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) _____ are used where it is necessary to control a circuit by a low power signal. Transformer Electric Motor None of these Relays Transformer Electric Motor None of these Relays ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) Admittance relay is _____ relay. Directional Non-directional Impedance None of these Directional Non-directional Impedance None of these ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) Increasing the number of turns of wire on the secondary of a transformer will Increase the primary current Have no effect on the secondary current Increase the secondary current Decrease the secondary current Increase the primary current Have no effect on the secondary current Increase the secondary current Decrease the secondary current ANSWER EXPLANATION DOWNLOAD EXAMIANS APP transformer ratio K : N₂/N₁=V₂/V₁=I₁/I₂
DGVCL Exam Paper (12-06-2016) Core type transformers are popular in _____ High voltage applications All of these Low voltage applications None of these High voltage applications All of these Low voltage applications None of these ANSWER DOWNLOAD EXAMIANS APP
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