DGVCL Exam Paper (12-06-2016) The main advantage of AC over DC is: All of these AC is easy to maintain & can be easily distributed at long distances Conversion flexibility from one voltage level to other AC can be easily converted into DC by using a rectifier All of these AC is easy to maintain & can be easily distributed at long distances Conversion flexibility from one voltage level to other AC can be easily converted into DC by using a rectifier ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) Cylindrical type transformer has: None of these Double magnetic circuit All of these Single magnetic circuit None of these Double magnetic circuit All of these Single magnetic circuit ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The rating of transformer may be expressed in _____ kW kVAR Horse power kVA kW kVAR Horse power kVA ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Equipment : RatingTransformer : kVAAlternator : kVAMotor : kW/HPBattery : ampere-hour
DGVCL Exam Paper (12-06-2016) Capacitance is the ability of a body to store an _____ voltage electrical charge All of these electric current voltage electrical charge All of these electric current ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The arc temperature in Oil Circuit Breaker may reach up to _____ 8,000° K 10,000° K None of these 5,000° K 8,000° K 10,000° K None of these 5,000° K 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: 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 Current will be too much high Transformer may start to smoke and burn Eddy Current and Hysteresis losses will be excessive ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Core loss of transformer = Hysteresis loss + eddy current lossHysteresis loss prpotional to feddy current loss prpotional to f².
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