Power Systems What type of back up protection is used for alternators? Buchholz relay. IDMT relay. Mho relay. Impedance relay. Buchholz relay. IDMT relay. Mho relay. Impedance relay. ANSWER DOWNLOAD EXAMIANS APP
Power Systems If the inertia constant H = 10 MJ/MVA for a 50 MVA generator, the stored energy is 50 MJ 500 MJ 5 MJ 10 MJ 50 MJ 500 MJ 5 MJ 10 MJ ANSWER DOWNLOAD EXAMIANS APP
Power Systems The function of moderator in a nuclear reactor is to reduce temperature. absorb neutrons. reduce the speed of neutrons. stop chain reaction. reduce temperature. absorb neutrons. reduce the speed of neutrons. stop chain reaction. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following materials is/are used as moderators? beryllium graphite All of these heavy water beryllium graphite All of these heavy water ANSWER DOWNLOAD EXAMIANS APP
Power Systems Surge impedance loading of a line is increased by which of the following compensation methods? series capacitor shunt reactor shunt capacitor both 1 and 2 series capacitor shunt reactor shunt capacitor both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 200 MVA alternator operated at no load at frequency of 50 Hz, it has inertia constant of 5 MWsec/MVA and governing system has a time delay of 0.6 sec. If the load of 50 MW is suddenly applied then find the frequency deviation during this time? 0.76 Hz 0.85 Hz -0.76 Hz -0.85 Hz 0.76 Hz 0.85 Hz -0.76 Hz -0.85 Hz ANSWER DOWNLOAD EXAMIANS APP
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