DGVCL Exam Paper (12-06-2016) An _____ is a network of electrical components used to supply, transfer and use electric power: Electric power system All of these Electric power None of these Electric power system All of these Electric power 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 Decrease the secondary current Increase the secondary current Increase the primary current Have no effect on the secondary current Decrease the secondary current Increase the secondary current Increase the primary current Have no effect on the secondary current ANSWER EXPLANATION DOWNLOAD EXAMIANS APP transformer ratio K : N₂/N₁=V₂/V₁=I₁/I₂
DGVCL Exam Paper (12-06-2016) Which of the following 3-phase connection of a transformer causes interference with the neighbouring communication lines: Delta-Delta Delta-Star Star-Delta Star-Star Delta-Delta Delta-Star Star-Delta Star-Star ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) Cylindrical type transformer has: Double magnetic circuit None of these All of these Single magnetic circuit Double magnetic circuit None of these All of these Single magnetic circuit ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) For 11 kV line the inductance per km per phase will be of the order of: 0.1 H 1 mH 1 H 0.1 mH 0.1 H 1 mH 1 H 0.1 mH ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The transformer works on the principle of: Mutual capacitance All of these Mutual induction None of these Mutual capacitance All of these Mutual induction None of these ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Transformer is static device.two or more stationary electrical circuit mutually linked by magnetic circuit.assumptions of ideal transformer:1. there are no losses.2. whole magnetic flux constant no leakage.3. permeability of core is infinite.
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