Power Systems Lightning arresters are used to protect electrical equipment against over currents due to lightning stroke. direct strokes of lightning. over voltages due to indirect lightning stroke. power frequency of over voltages. over currents due to lightning stroke. direct strokes of lightning. over voltages due to indirect lightning stroke. power frequency of over voltages. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In what from the initial energy will be released for the 200 MeV per fission by a neutron in a slow thermal nuclear reactor kinetic energy of particles and electromagnetic radiation. kinetic energy and sound energy. heat energy. electromagnetic radiations. kinetic energy of particles and electromagnetic radiation. kinetic energy and sound energy. heat energy. electromagnetic radiations. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The VSWR of transmission line is Directly proportional to voltage minimum and inversely proportional to voltage maximum. Directly proportional to load impedance and inversely to characteristic impedance. Directly proportional to characteristic impedance and inversely to load impedance. Proportional to load and characteristic impedance. Directly proportional to voltage minimum and inversely proportional to voltage maximum. Directly proportional to load impedance and inversely to characteristic impedance. Directly proportional to characteristic impedance and inversely to load impedance. Proportional to load and characteristic impedance. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following represents the sag(S) of a transmission line? S = wl²/2T S = wl²/8T S = wl²/4T S = wl²/16T S = wl²/2T S = wl²/8T S = wl²/4T S = wl²/16T ANSWER DOWNLOAD EXAMIANS APP
Power Systems The insulator thickness on the conductor, in cables depends upon voltage reactive power current power factor voltage reactive power current power factor ANSWER DOWNLOAD EXAMIANS APP
Power Systems What are the methods of laying underground cables? Draw - in - system / duct - pipe laying. Both A and B. Direct laying. None of these. Draw - in - system / duct - pipe laying. Both A and B. Direct laying. None of these. ANSWER DOWNLOAD EXAMIANS APP
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