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 0.6 lagging 0.6 leading 0.5 leading 0.8 lagging 0.6 lagging 0.6 leading 0.5 leading ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) The purpose of providing a choke in a tube light is To avoid radio interference To eliminate corona effect To limit the current to an appropriate value To improve the power factor To avoid radio interference To eliminate corona effect To limit the current to an appropriate value To improve the power factor ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) In carrier current protection, the purpose of the wave trap is for All of these 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. ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) The positive and negative sequence impedance of a transmission line are Different Infinite Equal Zero Different Infinite Equal Zero ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) A Mho relay is a Voltage controlled over current relay Directional restrained over voltage relay Voltage restrained directional relay Directional restrained over current relay Voltage controlled over current relay Directional restrained over voltage relay Voltage restrained directional relay Directional restrained over current relay ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) In which of the following motors, the stator and rotor magnetic fields rotate at the same speed? Induction motor Reluctance motor Synchronous motor Universal motor Induction motor Reluctance motor Synchronous motor Universal motor ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In all machine stator and rotor magnetic field rotates (stationary with respect to each other) at synchronous speed with respect to stationary observer.
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