DGVCL Exam Paper (11-12-2011) What type of insulator is used if the direction of the transmission line is to be changed? Pin type Suspebsion type Strain type Shakle type Pin type Suspebsion type Strain type Shakle type ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) The bus bar zone faults are generally Double line to ground faults Phase to phase faults Single line to ground faults Three phase short ciruits Double line to ground faults Phase to phase faults Single line to ground faults Three phase short ciruits ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) In the protection of transformers, harmonic restraint is used to guard against Switching over voltages Lightning Unbalanced protection Magnetizing inrush current Switching over voltages Lightning Unbalanced protection Magnetizing inrush current ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Initial inrush of magnetizing currents have high component of even and odd harmonics.2nd - 63%3rd -26.8%4th- 5.1%5th- 4.1%6th- 3.77th-2.4
DGVCL Exam Paper (11-12-2011) The positive and negative sequence impedance of a transmission line are Zero Different Infinite Equal Zero Different Infinite Equal ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) Hysteresis in an instrument means The change in the same reading when the input is first increased and then decreased The reliability of the instrument The repeatability of the instrument The inaccuracy due to change in temperature The change in the same reading when the input is first increased and then decreased The reliability of the instrument The repeatability of the instrument The inaccuracy due to change in temperature ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) All the peripheral devices connected to a computer require power to work. Which of the following voltages is required for the motherboard to work? Negative cycle of sine wave DC Positive cycle of sine wave AC Negative cycle of sine wave DC Positive cycle of sine wave AC ANSWER DOWNLOAD EXAMIANS APP
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