DGVCL Exam Paper (12-06-2016) For cost & safety, the outdoor substations are installed for voltages above: 11 kV 110 kV 33 kV 60 kV 11 kV 110 kV 33 kV 60 kV ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The relay operating speed depends upon The spring tension Armature core air gap The rate of flux built up All of these The spring tension Armature core air gap The rate of flux built up All of these ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) Reactance relay is used for protection against: Earth fault None of these Over voltage fault Phase fault Earth fault None of these Over voltage fault Phase fault ANSWER DOWNLOAD EXAMIANS APP
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? None of these 100 times longer Same time 10 times longer None of these 100 times longer Same time 10 times longer 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: 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 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) The rating of fuse wire is always expressed in _____ kWh Ampere-hours Amperes Ampere-volts kWh Ampere-hours Amperes Ampere-volts ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Equipment :Rating Fuse : AmpereTransformer : kVAAlternator : kVAMotor : kW/HPBattery : ampere-hour
EXAMIANS