Power Systems Which of the following materials is/are used as moderators? graphite beryllium heavy water All of these graphite beryllium heavy water All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems Lightning arresters are used to protect electrical equipment against over currents due to lightning stroke. direct strokes of lightning. power frequency of over voltages. over voltages due to indirect lightning stroke. over currents due to lightning stroke. direct strokes of lightning. power frequency of over voltages. over voltages due to indirect lightning stroke. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Equal area criteria is used for relative stability of the system nether 1 nor 2 either 1 or 2 absolute stability of the system relative stability of the system nether 1 nor 2 either 1 or 2 absolute stability of the system ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 100 MVA alternator operating at full load at 50 Hz. H = 4 MWsec/MVA, Td = 0.5 sec. One of the transmission line is tripped. So that output of generator is reduced to 70 MW. Find the frequency deviation during this time? -0.92 0.92 0.56 -0.56 -0.92 0.92 0.56 -0.56 ANSWER DOWNLOAD EXAMIANS APP
Power Systems An over current relay, having a current setting of 125% connected to a supply circuit through a current transformer of ratio 400/5. The pick up value is 6.25 A 10 A 12.5 A 15 A 6.25 A 10 A 12.5 A 15 A ANSWER DOWNLOAD EXAMIANS APP
Power Systems For large plants of capacity for more than 15 MW, what type of cooling is used Liquid. Hydrogen. Water. Air. Liquid. Hydrogen. Water. Air. ANSWER DOWNLOAD EXAMIANS APP
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