DGVCL Exam Paper (12-06-2016) Efficiency of a power transformer is of the order of : 0.5 1 0.25 0.98 0.5 1 0.25 0.98 ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) Taskbar is used for Navigation program Start a program Switching between program All of above Navigation program Start a program Switching between program All of above ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) In fuel cell the _____ energy is converted into electrical energy. Mechanical Heat Sound Chemical Mechanical Heat Sound Chemical ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) In a transmission line if booster transformers are to be used, preferred location will be Anywhere in the line At the receiving end At the sending end At the intermediate point Anywhere in the line At the receiving end At the sending end At the intermediate point ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) In India _____ supply is 415 V supply through 4-wires. Two-phase None of these Single - phase Three - phase Two-phase None of these Single - phase Three - phase ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) What will happen if the primary of a transformer is connected to DC supply? 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 Transformer will operate with low efficiency No effect 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.
EXAMIANS