DGVCL Exam Paper (12-06-2016) Which of the following does not change in a transformer? Frequency Current Voltage All of these Frequency Current Voltage All of these 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) kWh meter is the electric meter that measures the amount of electrical _____ in kWh that was consumed in the house. Voltage Energy Current None of these Voltage Energy Current None of these ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The number of cycles in which a high speed circuit breaker can complete its operation is 3 to 8 40 to 50 20 to 30 10 to 18 3 to 8 40 to 50 20 to 30 10 to 18 ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) For cost & safety, the outdoor substations are installed for voltages above: 60 kV 110 kV 33 kV 11 kV 60 kV 110 kV 33 kV 11 kV ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The transformer works on the principle of: Mutual induction Mutual capacitance None of these All of these Mutual induction Mutual capacitance None of these All of these ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Transformer is static device.two or more stationary electrical circuit mutually linked by magnetic circuit.assumptions of ideal transformer:1. there are no losses.2. whole magnetic flux constant no leakage.3. permeability of core is infinite.
DGVCL Exam Paper (12-06-2016) About how many times longer would a 10 watt light bulb be able to burn compared to a 100 watt bulb with the same energy? Same time 10 times longer None of these 100 times longer Same time 10 times longer None of these 100 times longer ANSWER DOWNLOAD EXAMIANS APP
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