DGVCL Exam Paper (12-06-2016) SF₆ gas: Is yellow in colour Is lighter than air Has pungent smell Is nontoxic Is yellow in colour Is lighter than air Has pungent smell Is nontoxic ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) Induction cup relay is operated due to changes in : All of these Current Impedance Voltage All of these Current Impedance Voltage ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) What will happen if the primary of a transformer is connected to DC supply? No effect Transformer will operate with low efficiency Transformer may start to smoke and burn Transformer will operate with high efficiency No effect Transformer will operate with low efficiency 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) The SI unit of energy is : Henry Joule Newton Coulomb Henry Joule Newton Coulomb ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) Reactance relay is used for protection against: Over voltage fault None of these Earth fault Phase fault Over voltage fault None of these Earth fault Phase fault ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The permissible voltage variation in transmission and distribution system is: ± 1% ± 25% ±10% ± 0.1% ± 1% ± 25% ±10% ± 0.1% ANSWER EXPLANATION DOWNLOAD EXAMIANS APP This answer is as per official key of respective exam.
EXAMIANS