DGVCL Exam Paper (12-06-2016) Transformer core is laminated to _____ Reduce hysteresis loss Reduce eddy current losses Reduce all above losses Reduce copper losses Reduce hysteresis loss Reduce eddy current losses Reduce all above 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) SF₆ gas: Has pungent smell Is yellow in colour Is lighter than air Is nontoxic Has pungent smell Is yellow in colour Is lighter than air Is nontoxic ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) Increasing the number of turns of wire on the secondary of a transformer will Decrease the secondary current Have no effect on the secondary current Increase the secondary current Increase the primary current Decrease the secondary current Have no effect on the secondary current Increase the secondary current Increase the primary current ANSWER EXPLANATION DOWNLOAD EXAMIANS APP transformer ratio K : N₂/N₁=V₂/V₁=I₁/I₂
DGVCL Exam Paper (12-06-2016) For 11 kV line the capacitance per km per phase will be of the order of: 0.01 Farad 0.1 Farad 1 Farad 0.01 microF 0.01 Farad 0.1 Farad 1 Farad 0.01 microF ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) You should choose Sleep option when You are leaving for a very short time and want to resume your work shortly. When computer gets hanged frequently. Let it sleep for some time. You finish working and are going to bed. The computer is tired after working for the whole day. You are leaving for a very short time and want to resume your work shortly. When computer gets hanged frequently. Let it sleep for some time. You finish working and are going to bed. The computer is tired after working for the whole day. ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) A Transformer _____ Changes DC to AC Changes AC to DC Steps up or down AC Voltages & Current Steps up or down DC Voltages & Current Changes DC to AC Changes AC to DC Steps up or down AC Voltages & Current Steps up or down DC Voltages & Current ANSWER DOWNLOAD EXAMIANS APP
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