DGVCL Exam Paper (12-06-2016) The transformer works on the principle of: None of these Mutual capacitance All of these Mutual induction None of these Mutual capacitance All of these Mutual induction 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.
DGVCL Exam Paper (12-06-2016) A certain transformer has 200 turns in the primary winding, 50 turns in the secondary winding and 120 volts applied to the primary. What is the voltage across the secondary? 30 Volts 60 Volts 480 Volts 120 Volts 30 Volts 60 Volts 480 Volts 120 Volts ANSWER EXPLANATION DOWNLOAD EXAMIANS APP For transformer, V2/V1 = N2/N1V2/120 = 50/200V2 = 30 V
DGVCL Exam Paper (12-06-2016) Cylindrical type transformer has: Double magnetic circuit Single magnetic circuit None of these All of these Double magnetic circuit Single magnetic circuit None of these All of these ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) If the displayed system time and date is wrong, you can reset it using : Desk top Menu bar Control panel Task bar Desk top Menu bar Control panel Task bar ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The voltage of transmission can be regulated by Any of the above methods Switching in shunt capacitors at the receiving end during heavy loads Use of capacitors to neutralize the effect of series reactance Use of tap changing transformers Any of the above methods Switching in shunt capacitors at the receiving end during heavy loads Use of capacitors to neutralize the effect of series reactance Use of tap changing transformers ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) A _____ is used to measure the stator % winding temperature of the generator. Thermometer Pyrometer Thermocouple Resistance thermometer Thermometer Pyrometer Thermocouple Resistance thermometer ANSWER DOWNLOAD EXAMIANS APP
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