DGVCL Exam Paper (12-06-2016) In a transformer the energy is conveyed from primary to secondary By the flux None of these Through air Through cooling coil By the flux None of these Through air Through cooling coil ANSWER EXPLANATION DOWNLOAD EXAMIANS APP function of transfomer is that transfer electrical energy from primary cicuit to secondary through magnetic cicuit by mutual induction
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: Eddy Current and Hysteresis losses will be excessive Current will be too much high No effect Transformer may start to smoke and burn Eddy Current and Hysteresis losses will be excessive Current will be too much high No effect Transformer may start to smoke and burn 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) SF₆ gas: Has pungent smell Is lighter than air Is nontoxic Is yellow in colour Has pungent smell Is lighter than air Is nontoxic Is yellow in colour ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The UGVCL is operative in the _____ Gujarat. Northern Western Central Southern Northern Western Central Southern ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The consumer of electricity could be: All of these Agricultural Industrial and Commercial Domestic All of these Agricultural Industrial and Commercial Domestic ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) A fuse wire should have : Low specific resistance and high melting point High specific resistance and low melting point Low specific resistance and low melting point High specific resistance and high melting point Low specific resistance and high melting point High specific resistance and low melting point Low specific resistance and low melting point High specific resistance and high melting point ANSWER DOWNLOAD EXAMIANS APP
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