Power Systems Critical mass is minimum mass of fissionable material required to sustain chain reaction. none of these. maximum mass of fissionable material required to sustain a chain reaction. a mass of fissionable material required to stop a chain reaction. minimum mass of fissionable material required to sustain chain reaction. none of these. maximum mass of fissionable material required to sustain a chain reaction. a mass of fissionable material required to stop a chain reaction. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following relays is/are unit protection relays? Differential relays Buccholz relays both 1 and 2 over current relays Differential relays Buccholz relays both 1 and 2 over current relays ANSWER DOWNLOAD EXAMIANS APP
Power Systems For harnessing low variable water heads, the suitable hydraulic turbine with high percentage of reaction and runner adjust vanes is Francis. Kaplan. Pelton. Impeller. Francis. Kaplan. Pelton. Impeller. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In thermal power plants the size of coal after crushing 20 - 25 mm. 200 - 205 mm. 40 mm. 300 mm. 20 - 25 mm. 200 - 205 mm. 40 mm. 300 mm. ANSWER DOWNLOAD EXAMIANS APP
Power Systems If the fault current is 2000 A, the relay setting is 50% and CT ratio is 400 : 5, then plug setting multiplier will be 15. 10. 25. 50. 15. 10. 25. 50. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Two insulator discs of identical capacitance value C make up a string for a 22 kV, 50 Hz, single phase overhead line insulation system. If pin to earth capacitance is also C, then find the string efficiency? 86%% 50% 75% 90% 86%% 50% 75% 90% ANSWER DOWNLOAD EXAMIANS APP
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