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 Eddy Current and Hysteresis losses will be excessive Transformer may start to smoke and burn Current will be too much high No effect Eddy Current and Hysteresis losses will be excessive 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) A _____ is used to measure the stator % winding temperature of the generator. Thermocouple Pyrometer Thermometer Resistance thermometer Thermocouple Pyrometer Thermometer Resistance thermometer ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The following formula is correct: Diversity factor = 1 x Coincidence Factor Diversity factor = 1 - Coincidence Factor Diversity factor = 1/Coincidence Factor All of these Diversity factor = 1 x Coincidence Factor Diversity factor = 1 - Coincidence Factor Diversity factor = 1/Coincidence Factor All of these ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) As per Electricity Act, _____ means any line which is used for carrying electricity for any purpose. None of these Electric line Transmission line All of these None of these Electric line Transmission line All of these ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) Which of the following is the least expensive protection for over current in low voltage system? Air break circuit breaker Isolator Oil Circuit breaker Rewireable fuse Air break circuit breaker Isolator Oil Circuit breaker Rewireable fuse ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) Where is RAM located? Mother Board External Drive Expansion Board All of above Mother Board External Drive Expansion Board All of above ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS