DGVCL Exam Paper (12-06-2016) Admittance relay is _____ relay. None of these Impedance Directional Non-directional None of these Impedance Directional Non-directional 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: Eddy Current and Hysteresis losses will be excessive No effect Transformer may start to smoke and burn Current will be too much high Eddy Current and Hysteresis losses will be excessive No effect Transformer may start to smoke and burn 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) Which of the following does not change in a transformer? Frequency All of these Current Voltage Frequency All of these Current Voltage ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In transformer voltage and current can be raised or lowered.Frequency remains samePower and Flux remains almost constant.
DGVCL Exam Paper (12-06-2016) The Electricity Act is applicable in _____ All the states of India All parts of India In Gujarat only All parts of India except state of Jammu and Kashmir All the states of India All parts of India In Gujarat only All parts of India except state of Jammu and Kashmir ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) True value has been 50 whereas measured value is 40 then the percentage error in the reading will be _____ 0.3 0.4 0.2 0.5 0.3 0.4 0.2 0.5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP %error = 100 * (actual - measured )/ actual
DGVCL Exam Paper (12-06-2016) The SI unit of energy is : Joule Coulomb Henry Newton Joule Coulomb Henry Newton ANSWER DOWNLOAD EXAMIANS APP
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