DGVCL Exam Paper (12-06-2016) The permissible voltage variation in transmission and distribution system is: ±10% ± 0.1% ± 25% ± 1% ±10% ± 0.1% ± 25% ± 1% ANSWER EXPLANATION DOWNLOAD EXAMIANS APP This answer is as per official key of respective exam.
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 Transformer _____ Changes AC to DC Changes DC to AC Steps up or down AC Voltages & Current Steps up or down DC Voltages & Current Changes AC to DC Changes DC to AC Steps up or down AC Voltages & Current Steps up or down DC Voltages & Current 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 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 Transformer may start to smoke and burn 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 overall efficiency of Thermal Power Plant is equal to _____ Regenerative Cycle Efficiency Carnot cycle efficiency None of these Renkine Cycle Efficiency Regenerative Cycle Efficiency Carnot cycle efficiency None of these Renkine Cycle Efficiency ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Product of boiler efficiency, turbine efficiency and generator efficiency.
DGVCL Exam Paper (12-06-2016) A _____ is used to measure the stator % winding temperature of the generator. Thermocouple Pyrometer Resistance thermometer Thermometer Thermocouple Pyrometer Resistance thermometer Thermometer ANSWER DOWNLOAD EXAMIANS APP
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