Power Systems Which of the following rotor is used in thermal power plants? either of these salient pole rotor squirrel cage rotor cylindrical rotor either of these salient pole rotor squirrel cage rotor cylindrical rotor ANSWER DOWNLOAD EXAMIANS APP
Power Systems Three generators rated 100 MVA, 11 kV have an impedance of 0.15 pu each. If in the same plant, these generators are being replaced by a single equivalent generator, the effective impedance of equivalent generator will be 0.05 pu 0.15 pu 0.25 pu 0.45 pu 0.05 pu 0.15 pu 0.25 pu 0.45 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems Lightning arresters are made up of which material? silicon oxide copper any of the above silver silicon oxide copper any of the above silver ANSWER DOWNLOAD EXAMIANS APP
Power Systems The time taken by the turbine to fall to 0 rpm speed from 3000 rpm is called coasting time. settling time. stopping time. damping time. coasting time. settling time. stopping time. damping time. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In boiler water reactor (BWR) all of above. enriched uranium is used as fuel. there is danger of radioactive contamination of steam. the feed water acts both coolant and a moderator. all of above. enriched uranium is used as fuel. there is danger of radioactive contamination of steam. the feed water acts both coolant and a moderator. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The line currents of 3-phase supply are: IR = 3 + j 5 A IY =2 + j 2 A IB = -2 - j 1 A The zero sequence current will be 1 + j 2 A -2 - j 1 A 5 + j 7 A 1 + j 4 A 1 + j 2 A -2 - j 1 A 5 + j 7 A 1 + j 4 A ANSWER DOWNLOAD EXAMIANS APP
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