DGVCL Exam Paper (12-06-2016) A Transformer _____ Changes DC to AC Changes AC to DC Steps up or down DC Voltages & Current Steps up or down AC Voltages & Current Changes DC to AC Changes AC to DC Steps up or down DC Voltages & Current Steps up or down AC Voltages & Current ANSWER DOWNLOAD EXAMIANS APP
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 66 kV 132 kV 11 kV 33 kV 66 kV 132 kV 11 kV 33 kV ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) An _____ is a network of electrical components used to supply, transfer and use electric power: Electric power system None of these Electric power All of these Electric power system None of these Electric power All of these ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) Earthing switch is used for? Discharging residual energies Measuring of safety voltage Protection of equipment from ground faults All of these Discharging residual energies Measuring of safety voltage Protection of equipment from ground faults All of these ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The relay operating speed depends upon The rate of flux built up All of these The spring tension Armature core air gap The rate of flux built up All of these The spring tension Armature core air gap ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The transformer works on the principle of: None of these All of these Mutual induction Mutual capacitance None of these All of these Mutual induction Mutual capacitance 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.
EXAMIANS