DGVCL Exam Paper (11-12-2011) A fuse is inserted in Neutral wire Both phased and neutral wire Earth continuity conductor Phase wire Neutral wire Both phased and neutral wire Earth continuity conductor Phase wire ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) Bulk power transmission over long HVDC lines are preferred on account of No harmonic problems Simple protection Low cost of HVDC terminals Minimum line power losses No harmonic problems Simple protection Low cost of HVDC terminals Minimum line power losses ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) Two parallel conductors are carrying the current in the same direction. Which of the following statements is correct? The force increases when the distance between the conductors is increased There is a repelling force between the conductors There is an attracting force between the conductors The force increases when the distance between the conductors is decreased The force increases when the distance between the conductors is increased There is a repelling force between the conductors There is an attracting force between the conductors The force increases when the distance between the conductors is decreased ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) If the excitation of a synchronous generator fails, it acts as a Synchronous generator Induction motor Synchronous motor Induction generator Synchronous generator Induction motor Synchronous motor Induction generator ANSWER EXPLANATION DOWNLOAD EXAMIANS APP if excitation of synchronous generator fails, operate as induction motor
DGVCL Exam Paper (11-12-2011) In a series RLC circuit at resonance Current is minimum and power factor is unity Current is maximum and power factor is 0.5 Current is minimum and power factor is 0.5 Current is maximum and power factor is unity Current is minimum and power factor is unity Current is maximum and power factor is 0.5 Current is minimum and power factor is 0.5 Current is maximum and power factor is unity ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) The purpose of interpoles in DC machines is to nullify The cross-magnetizing effect of armature mmf Both the cross-magnetizing mmf and the reactance voltage The reactance voltage The demagnetizing effect of armature mmf The cross-magnetizing effect of armature mmf Both the cross-magnetizing mmf and the reactance voltage The reactance voltage The demagnetizing effect of armature mmf ANSWER EXPLANATION DOWNLOAD EXAMIANS APP interpoles is widely use to improve commutationplace between main poles fitted to yokefunctions:to neutralize armature mmf in commutating zoneto produce some flux in commutating zone
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