DGVCL Exam Paper (12-06-2016) A 100-watt light bulb turned on for 8 hours uses : 0.8 kWh 8 kWh 800 Wh None of these 0.8 kWh 8 kWh 800 Wh None of these ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In Solution 0.8 kWh and 800 Wh both options are given as answer as both are correct
DGVCL Exam Paper (12-06-2016) Wave trap is used to trap waves of: All of these None of these Higher frequencies entering generator or transformer units Power frequencies All of these None of these Higher frequencies entering generator or transformer units Power frequencies ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) Isolator in substation is open under _____ condition. None of these Short circuit No load Full load None of these Short circuit No load Full load ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Isolators do not have capacity to make or breake circuit when current flowing in circuit
DGVCL Exam Paper (12-06-2016) In case the height of transmission tower is increased, which of the following parameter is likely to change? Resistance None of these Inductance Capacitance Resistance None of these Inductance Capacitance ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) For a 66 kV line having span of 200 meters between towers the approximate sag will be 2 m. If the span is double the sag will be: 8 m 1 m 4 m 2 m 8 m 1 m 4 m 2 m ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) Transformer core is laminated to _____ Reduce all above losses Reduce eddy current losses Reduce copper losses Reduce hysteresis loss Reduce all above losses Reduce eddy current losses Reduce copper losses Reduce hysteresis loss ANSWER EXPLANATION DOWNLOAD EXAMIANS APP To reduce eddy current loss laminations is done.To reduce hysteresis loss good magnetic material (whose specific hysterisis loss is low) is used.
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