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? Positive cycle of sine wave Negative cycle of sine wave DC AC Positive cycle of sine wave Negative cycle of sine wave DC AC ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) Different computers are connected to a LAN by a cable and a Modem Special wires Telephone line Interface card Modem Special wires Telephone line Interface card ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) If the dielectric strength of the medium between the contacts builds up more rapidly than the restriking voltage the arc will Decrease in size Restrike Extinguish Increase in size Decrease in size Restrike Extinguish Increase in size ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) First zone distance relay protects the transmission line section upto 80 % of its full length 25 % of its full length Its full length 50 % of its full length 80 % of its full length 25 % of its full length Its full length 50 % of its full length ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) The transient stability of a power system can be improved by Phase shifting transformer Increasing the turbine valve opening Excitation control Single pole switching of circuit breakers Phase shifting transformer Increasing the turbine valve opening Excitation control Single pole switching of circuit breakers ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) The insulation coordination for UHV lines (above 500 kV) is done based on Voltage level of the line Switching surges Lightning surges Lightning and switching surges Voltage level of the line Switching surges Lightning surges Lightning and switching surges ANSWER DOWNLOAD EXAMIANS APP