DGVCL Exam Paper (12-06-2016) What will happen if the primary of a transformer is connected to DC supply? Transformer will operate with low efficiency No effect Transformer may start to smoke and burn Transformer will operate with high efficiency Transformer will operate with low efficiency No effect Transformer may start to smoke and burn Transformer will operate with high efficiency ANSWER EXPLANATION DOWNLOAD EXAMIANS APP transformer works on principle of faraday's law of electromagnetic induction. So if D.C supply use, no indction are produced and due to this E.M.F not induced in winding and transfer of electrical energy is not possible.
DGVCL Exam Paper (12-06-2016) If 3000 kW power is to be transmitted over a distance of 30 km, the desirable transmission voltage will be 11 kV 132 kV 33 kV 66 kV 11 kV 132 kV 33 kV 66 kV ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The following is/are the characteristics of SF₆ circuit breakers: Short break time of 2 to 2.5 cycles All of these None of these It does not need an auxiliary breaking chamber Short break time of 2 to 2.5 cycles All of these None of these It does not need an auxiliary breaking chamber ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) Taskbar is used for Switching between program Start a program Navigation program All of above Switching between program Start a program Navigation program All of above ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The Central Electricity Regulatory Commission (CERC) is mainly responsible for: Regulating tariffs for generation and inter-state transmission of energy including tariffs Efficiency and economy in the electricity industry Advising the government on tariff policy and promoting competition All of these Regulating tariffs for generation and inter-state transmission of energy including tariffs Efficiency and economy in the electricity industry Advising the government on tariff policy and promoting competition All of these ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The permissible voltage variation in transmission and distribution system is: ±10% ± 25% ± 0.1% ± 1% ±10% ± 25% ± 0.1% ± 1% ANSWER EXPLANATION DOWNLOAD EXAMIANS APP This answer is as per official key of respective exam.
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