DGVCL Exam Paper (11-12-2011) An AC series circuit has R = 6 Ω, XL = 20 Ω and Xc = 12 Ω. The ciruit power factor will be 0.8 lagging 0.5 leading 0.6 leading 0.6 lagging 0.8 lagging 0.5 leading 0.6 leading 0.6 lagging ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) Which of the following power distribution system gives better reliabity ? Ring main system None of these Radial system DC 3 wire system Ring main system None of these Radial system DC 3 wire system ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) The advantage of slipring induction motor over the squirrel cage induction motor is It can be started with the help of rotor resistances It has a higher efficiency It's power factor is higher It is suitable for higher speeds It can be started with the help of rotor resistances It has a higher efficiency It's power factor is higher It is suitable for higher speeds ANSWER EXPLANATION DOWNLOAD EXAMIANS APP slip ring motor have high starting torque compare to squirrel cage motor and have good speed controlalso have high over loading capacity, smooth acceleration under heavy loads.
DGVCL Exam Paper (11-12-2011) In carrier current protection, the purpose of the wave trap is for Tripping fault current Trapping power frequency waves Trapping high frequency waves entering into generator/transformer unit. All of these Tripping fault current Trapping power frequency waves Trapping high frequency waves entering into generator/transformer unit. All of these ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) The best location of the power factor correction equipment to be installed in the transmission line is at The sending end Any place The receiving end Middle of the line The sending end Any place The receiving end Middle of the line ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) The bus bar zone faults are generally Double line to ground faults Three phase short ciruits Phase to phase faults Single line to ground faults Double line to ground faults Three phase short ciruits Phase to phase faults Single line to ground faults ANSWER DOWNLOAD EXAMIANS APP
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