DGVCL Exam Paper (12-06-2016) One kilowatt-hour is? 1.6 mega joules 3.6 mega joules None of these 2.6 mega joules 1.6 mega joules 3.6 mega joules None of these 2.6 mega joules ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) Step-down transformer converts high voltage and low current into: High voltage and low current None of these How voltage and high current Low voltage and high current High voltage and low current None of these How voltage and high current Low voltage and high current ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In step up votlage,Output votlage > Input votlageOutput current < Input currentIn step down transformerOutput votlage < Input votlageOutput current > Input current.Power and frequency remains almost constant in stepup or stepdown transformer.
DGVCL Exam Paper (12-06-2016) The acting contacts for a circuit breakers are made of : Stainless Steel Porcelain Hard-pressed carbon Copper Tungsten alloy Stainless Steel Porcelain Hard-pressed carbon Copper Tungsten alloy ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) Which of the following does not change in a transformer? Frequency All of these Current Voltage Frequency All of these Current Voltage 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) Reactance relay is used for protection against: Phase fault Over voltage fault None of these Earth fault Phase fault Over voltage fault None of these Earth fault ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The permissible voltage variation in transmission and distribution system is: ± 0.1% ±10% ± 25% ± 1% ± 0.1% ±10% ± 25% ± 1% ANSWER EXPLANATION DOWNLOAD EXAMIANS APP This answer is as per official key of respective exam.
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