DGVCL Exam Paper (12-06-2016) The acting contacts for a circuit breakers are made of : Hard-pressed carbon Copper Tungsten alloy Stainless Steel Porcelain Hard-pressed carbon Copper Tungsten alloy Stainless Steel Porcelain ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) Core type transformers are popular in _____ High voltage applications None of these Low voltage applications All of these High voltage applications None of these Low voltage applications All of these ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The time of closing the cycle, in modern circuit breakers is 0.01 sec. 0.001 sec. 0.003 sec. 0.1 sec. 0.01 sec. 0.001 sec. 0.003 sec. 0.1 sec. ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) What would happen if a power transformer designed for operation on 50 Hz (frequency) were connected to a 500 Hz (frequency) source of the same voltage: Transformer may start to smoke and burn No effect Eddy Current and Hysteresis losses will be excessive Current will be too much high Transformer may start to smoke and burn No effect Eddy Current and Hysteresis losses will be excessive Current will be too much high ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Core loss of transformer = Hysteresis loss + eddy current lossHysteresis loss prpotional to feddy current loss prpotional to f².
DGVCL Exam Paper (12-06-2016) In fuel cell the _____ energy is converted into electrical energy. Mechanical Sound Heat Chemical Mechanical Sound Heat Chemical ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The Central Electricity Regulatory Commission (CERC) is mainly responsible for: Regulating tariffs for generation and inter-state transmission of energy including tariffs Efficiency and economy in the electricity industry Advising the government on tariff policy and promoting competition All of these Regulating tariffs for generation and inter-state transmission of energy including tariffs Efficiency and economy in the electricity industry Advising the government on tariff policy and promoting competition All of these ANSWER DOWNLOAD EXAMIANS APP
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