DGVCL Exam Paper (11-12-2011) Transposition of transmission line is done to Reduce corona Balance line voltage drop Reduce skin effect Reduce line loss Reduce corona Balance line voltage drop Reduce skin effect Reduce line loss ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) If the fault current is 2000 A, the relay plug setting is 50% and the CT ratio is 400/5, the plug setting multiple will be 15 10 25 50 15 10 25 50 ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) Which lightning stroke is most dangerous? Direct stoke on tower top Direct stroke on ground wire Indirect stroke on conductor Direct stroke on line conductor Direct stoke on tower top Direct stroke on ground wire Indirect stroke on conductor Direct stroke on line conductor ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) The purpose of interpoles in DC machines is to nullify The reactance voltage The demagnetizing effect of armature mmf Both the cross-magnetizing mmf and the reactance voltage The cross-magnetizing effect of armature mmf The reactance voltage The demagnetizing effect of armature mmf Both the cross-magnetizing mmf and the reactance voltage The cross-magnetizing 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
DGVCL Exam Paper (11-12-2011) Reactance relay is used to protect against Phase faults only Both phase and earth faults Over voltage faults Earth faults only Phase faults only Both phase and earth faults Over voltage faults Earth faults only ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) In a power plant, a reserve generating capacity which is not in service but is in operation is known as Hot reserve Spinning reserve Firm power Cold reserve Hot reserve Spinning reserve Firm power Cold reserve ANSWER DOWNLOAD EXAMIANS APP
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