DGVCL Exam Paper (11-12-2011) If a relay fails to operate inspite of a fault in its own zone of protection, it is said to Pick up Over reach Reach Under reach Pick up Over reach Reach Under reach ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) Which motor is used to start heavy loads? Shunt motor Series motor Cumulatively compounded motor Differentially compounded motor Shunt motor Series motor Cumulatively compounded motor Differentially compounded motor ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Torque in d.c motor = k* φ * IaIn series motor φ α IaTα I²starting torque of dc series motor is high
DGVCL Exam Paper (11-12-2011) Rated making capacity of a ciruit breaker is equal to 2.55 X rated symmetrical breaking capacity Rated symmetrical breaking capacity 1.11 X rated symmetrical breaking capacity √2 X rated symmetrical breaking capacity 2.55 X rated symmetrical breaking capacity Rated symmetrical breaking capacity 1.11 X rated symmetrical breaking capacity √2 X rated symmetrical breaking capacity ANSWER DOWNLOAD EXAMIANS APP
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 maximum and power factor is unity Current is minimum and power factor is 0.5 Current is minimum and power factor is unity Current is maximum and power factor is 0.5 Current is maximum and power factor is unity Current is minimum and power factor is 0.5 ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) Under operating conditions, the secondary of a current transformer is always short ciruited because It is safe to human beings It protects the primary ciruits It protects the secondary ciruits It avoids core saturation and high voltage induction It is safe to human beings It protects the primary ciruits It protects the secondary ciruits It avoids core saturation and high voltage induction ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) Which lightning stroke is most dangerous? Indirect stroke on conductor Direct stoke on tower top Direct stroke on ground wire Direct stroke on line conductor Indirect stroke on conductor Direct stoke on tower top Direct stroke on ground wire Direct stroke on line conductor ANSWER DOWNLOAD EXAMIANS APP
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