DGVCL Exam Paper (12-06-2016) In India _____ supply is 415 V supply through 4-wires. Two-phase Three - phase None of these Single - phase Two-phase Three - phase None of these Single - phase 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: Current will be too much high Transformer may start to smoke and burn Eddy Current and Hysteresis losses will be excessive No effect Current will be too much high Transformer may start to smoke and burn Eddy Current and Hysteresis losses will be excessive No effect 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) Which unit holds data permanently? Primary Memory Unit Secondary storage unit Input unit Output Unit Primary Memory Unit Secondary storage unit Input unit Output Unit ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) _____ are used where it is necessary to control a circuit by a low power signal. Transformer Relays None of these Electric Motor Transformer Relays None of these Electric Motor ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) A fuse wire should have : Low specific resistance and low melting point High specific resistance and high melting point High specific resistance and low melting point Low specific resistance and high melting point Low specific resistance and low melting point High specific resistance and high melting point High specific resistance and low melting point Low specific resistance and high melting point ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) In a transmission line if booster transformers are to be used, preferred location will be At the intermediate point At the receiving end Anywhere in the line At the sending end At the intermediate point At the receiving end Anywhere in the line At the sending end ANSWER DOWNLOAD EXAMIANS APP
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