DGVCL Exam Paper (11-12-2011) Which type of back up protection is widely used for the protection of transmission lines? Remote backup Relay backup Breaker backup Control backup Remote backup Relay backup Breaker backup Control backup ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) The effect of electric shock on the human body depends on Current Duration of contact All of these Voltage Current Duration of contact All of these Voltage ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) The positive and negative sequence impedance of a transmission line are Equal Different Infinite Zero Equal Different Infinite Zero ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) An over excited synchronous motor draws current at Unity power factor Lagging power factor Leading power factor Depends on nature of load Unity power factor Lagging power factor Leading power factor Depends on nature of load ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Over excitation : leading currentUnder excitation : lagging currentNormal excitation : current with unity PF (in phase current)
DGVCL Exam Paper (11-12-2011) A Mho relay is a Voltage controlled over current relay Voltage restrained directional relay Directional restrained over voltage relay Directional restrained over current relay Voltage controlled over current relay Voltage restrained directional relay Directional restrained over voltage relay Directional restrained over current relay ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) If the voltage at the two ends of a line are 132 kV, and its reactance is 40 Ω, the stability limit of the line is 500 MW 217.8 MW 435.6 MW 251.5 MW 500 MW 217.8 MW 435.6 MW 251.5 MW ANSWER DOWNLOAD EXAMIANS APP
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