DGVCL Exam Paper (11-12-2011) A fixed step by step procedure for finding the solution of a problem on computer is called Algorithm Logic Software Hardware Algorithm Logic Software Hardware ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) Two parallel conductors are carrying the current in the same direction. Which of the following statements is correct? The force increases when the distance between the conductors is increased The force increases when the distance between the conductors is decreased There is a repelling force between the conductors There is an attracting force between the conductors The force increases when the distance between the conductors is increased The force increases when the distance between the conductors is decreased There is a repelling force between the conductors There is an attracting force between the conductors ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) A 3 phase, 6 pole induction motor operates on 440 V, 50 Hz, supply. If the actual speed of the motor is 960 rpm the slip will be 6 % 4 % 5 % 0.4 % 6 % 4 % 5 % 0.4 % ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Ns = 120f/PSlip=(Ns-Nr)/NsNs = 1000 and Nr = 960 from equation of slip, S = (1000-960)/1000S = 0.04 or 4%
DGVCL Exam Paper (11-12-2011) The transient stability of a power system can be improved by Increasing the turbine valve opening Single pole switching of circuit breakers Excitation control Phase shifting transformer Increasing the turbine valve opening Single pole switching of circuit breakers Excitation control Phase shifting transformer ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) Transposition of transmission line is done to Reduce line loss Reduce corona Reduce skin effect Balance line voltage drop Reduce line loss Reduce corona Reduce skin effect Balance line voltage drop 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 Lightning surges Switching surges Lightning and switching surges Voltage level of the line Lightning surges Switching surges Lightning and switching surges ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS